Document:

Exhibit 4.1

 

EXECUTION VERSION

 

 

WASTE CONNECTIONS, INC.

 

 

INDENTURE

 

Dated as of November 16, 2018

 

 

U.S.
Bank National Association

 

Trustee

 

 

     

     

    

 

TABLE
OF CONTENTS

 

	Article I.	DEFINITIONS AND INCORPORATION BY REFERENCE	1
	 	 	 
	Section 1.1.	Definitions	1
	 	 	 
	Section 1.2.	Other Definitions	4
	 	 	 
	Section 1.3.	Incorporation by Reference of U.S. Trust Indenture Act	4
	 	 	 
	Section 1.4.	Rules of Construction	4
	 	 	 
	Article II.	THE SECURITIES	5
	 	 	 
	Section 2.1.	Issuable in Series	5
	 	 	 
	Section 2.2.	Establishment of Terms of Series of Securities	5
	 	 	 
	Section 2.3.	Execution and Authentication	6
	 	 	 
	Section 2.4.	Registrar and Paying Agent	7
	 	 	 
	Section 2.5.	Paying Agent to Hold Money in Trust	8
	 	 	 
	Section 2.6.	Securityholder Lists	8
	 	 	 
	Section 2.7.	Transfer and Exchange	8
	 	 	 
	Section 2.8.	Mutilated, Destroyed, Lost and Stolen Securities	8
	 	 	 
	Section 2.9.	Outstanding Securities	9
	 	 	 
	Section 2.10.	Treasury Securities	9
	 	 	 
	Section 2.11.	Temporary Securities	10
	 	 	 
	Section 2.12.	Cancellation	10
	 	 	 
	Section 2.13.	Defaulted Interest	10
	 	 	 
	Section 2.14.	Global Securities	10
	 	 	 
	Section 2.15.	CUSIP Numbers	11
	 	 	 
	Article III.	REDEMPTION	11
	 	 	 
	Section 3.1.	Notice to Trustee	11
	 	 	 
	Section 3.2.	Selection of Securities to be Redeemed	12
	 	 	 
	Section 3.3.	Notice of Redemption	12
	 	 	 
	Section 3.4.	Effect of Notice of Redemption	13
	 	 	 
	Section 3.5.	Deposit of Redemption Price	13
	 	 	 
	Section 3.6.	Securities Redeemed in Part	13
	 	 	 
	Article IV.	COVENANTS	13
	 	 	 
	Section 4.1.	Payment of Principal and Interest	13
	 	 	 
	Section 4.2.	SEC Reports	13
	 	 	 
	Section 4.3.	Compliance Certificate	13
	 	 	 
	Section 4.4.	Stay, Extension and Usury Laws	14
	 	 	 
	Section 4.5.	Corporate Existence	14
	 	 	 
	Article V.	SUCCESSORS	14
	 	 	 
	Section 5.1.	When Company May Merge Amalgamate, Etc	14
	 	 	 
	Section 5.2.	Successor Corporation Substituted	14

    i 

     

    

  

	Article VI.	DEFAULTS AND REMEDIES	15
	 	 	 
	Section 6.1.	Events of Default	15
	 	 	 
	Section 6.2.	Acceleration of Maturity; Rescission and Annulment	16
	 	 	 
	Section 6.3.	Collection of Indebtedness and Suits for Enforcement by Trustee	16
	 	 	 
	Section 6.4.	Trustee May File Proofs of Claim	17
	 	 	 
	Section 6.5.	Trustee May Enforce Claims Without Possession of Securities	17
	 	 	 
	Section 6.6.	Application of Money Collected	18
	 	 	 
	Section 6.7.	Limitation on Suits	18
	 	 	 
	Section 6.8.	Unconditional Right of Holders to Receive Principal and Interest	18
	 	 	 
	Section 6.9.	Restoration of Rights and Remedies	19
	 	 	 
	Section 6.10.	Rights and Remedies Cumulative	19
	 	 	 
	Section 6.11.	Delay or Omission Not Waiver	19
	 	 	 
	Section 6.12.	Control by Holders	19
	 	 	 
	Section 6.13.	Waiver of Past Defaults	19
	 	 	 
	Section 6.14.	Undertaking for Costs	20
	 	 	 
	Article VII.	TRUSTEE	20
	 	 	 
	Section 7.1.	Duties of Trustee	20
	 	 	 
	Section 7.2.	Rights of Trustee	21
	 	 	 
	Section 7.3.	Individual Rights of Trustee	22
	 	 	 
	Section 7.4.	Trustee’s Disclaimer	22
	 	 	 
	Section 7.5.	Notice of Defaults	22
	 	 	 
	Section 7.6.	Reports by Trustee to Holders	23
	 	 	 
	Section 7.7.	Compensation and Indemnity	23
	 	 	 
	Section 7.8.	Replacement of Trustee	23
	 	 	 
	Section 7.9.	Successor Trustee by Merger, Etc	24
	 	 	 
	Section 7.10.	Eligibility; Disqualification	24
	 	 	 
	Section 7.11.	Preferential Collection of Claims Against Company	24
	 	 	 
	Article VIII.	SATISFACTION AND DISCHARGE; DEFEASANCE	24
	 	 	 
	Section 8.1.	Satisfaction and Discharge of Indenture	24
	 	 	 
	Section 8.2.	Application of Trust Funds; Indemnification	25
	 	 	 
	Section 8.3.	Legal Defeasance of Securities of any Series	26
	 	 	 
	Section 8.4.	Covenant Defeasance	27
	 	 	 
	Section 8.5.	Repayment to Company	28
	 	 	 
	Section 8.6.	Reinstatement	28
	 	 	 
	Article IX.	AMENDMENTS AND WAIVERS	28
	 	 	 
	Section 9.1.	Without Consent of Holders	28
	 	 	 
	Section 9.2.	With Consent of Holders	29
	 	 	 
	Section 9.3.	Limitations	29
	 	 	 
	Section 9.4.	Compliance with U.S. Trust Indenture Act	29
	 	 	 
	Section 9.5.	Revocation and Effect of Consents	30

 

    ii 

     

    

  

	Section 9.6.	Notation on or Exchange of Securities	30
	 	 	 
	Section 9.7.	Trustee Protected	30
	 	 	 
	Article X.	MISCELLANEOUS	30
	 	 	 
	Section 10.1.	U.S Trust Indenture Act Controls	30
	 	 	 
	Section 10.2.	Notices	31
	 	 	 
	Section 10.3.	Communication by Holders with Other Holders	31
	 	 	 
	Section 10.4.	Certificate and Opinion as to Conditions Precedent	32
	 	 	 
	Section 10.5.	Statements Required in Certificate or Opinion	32
	 	 	 
	Section 10.6.	Rules by Trustee and Agents	32
	 	 	 
	Section 10.7.	Payment Date Not a Business Day	32
	 	 	 
	Section 10.8.	No Recourse Against Others	32
	 	 	 
	Section 10.9.	Counterparts	32
	 	 	 
	Section 10.10.	Governing Laws	33
	 	 	 
	Section 10.11.	No Adverse Interpretation of Other Agreements	33
	 	 	 
	Section 10.12.	Successors	33
	 	 	 
	Section 10.13.	Severability	33
	 	 	 
	Section 10.14.	Table of Contents, Headings, Etc	33
	 	 	 
	Section 10.15.	Securities in a Foreign Currency	33
	 	 	 
	Section 10.16.	Judgment Currency	34
	 	 	 
	Section 10.17.	Force Majeure	34
	 	 	 
	Article XI.	SINKING FUNDS	34
	 	 	 
	Section 11.1.	Applicability of Article	34
	 	 	 
	Section 11.2.	Satisfaction of Sinking Fund Payments with Securities	35
	 	 	 
	Section 11.3.	Redemption of Securities for Sinking Fund	35

 

    iii 

     

    

  

Waste
Connections, Inc.

 

Reconciliation and tie between Trust Indenture
Act of 1939 and

Indenture, dated as of November 16, 2018

 

	§ 310(a)(1)	 	7.10
	(a)(2)	 	7.10
	(a)(3)	 	Not Applicable
	(a)(4)	 	Not Applicable
	(a)(5)	 	7.10
	(b)	 	7.10
	§ 311(a)	 	7.11
	(b)	 	7.11
	(c)	 	Not Applicable
	§ 312(a)	 	2.6
	(b)	 	10.3
	(c)	 	10.3
	§ 313(a)	 	7.6
	(b)(1)	 	7.6
	(b)(2)	 	7.6
	(c)(1)	 	7.6
	(d)	 	7.6
	§ 314(a)	 	4.2, 10.5
	(b)	 	Not Applicable
	(c)(1)	 	10.4
	(c)(2)	 	10.4
	(c)(3)	 	Not Applicable
	(d)	 	Not Applicable
	(e)	 	10.5
	(f)	 	Not Applicable
	§ 315(a)	 	7.1
	(b)	 	7.5
	(c)	 	7.1
	(d)	 	7.1
	(e)	 	6.14
	§ 316(a)	 	2.10
	(a)(1)(A)	 	6.12
	(a)(1)(B)	 	6.13
	(b)	 	6.8
	§ 317(a)(1)	 	6.3
	(a)(2)	 	6.4
	(b)	 	2.5
	§ 318(a)	 	10.1
	 	 	 

 

Note: This reconciliation and tie shall
not, for any purpose, be deemed to be part of the Indenture.

 

    iv 

     

    

 

Indenture dated as of
November 16, 2018 between Waste Connections, Inc., a corporation existing under the laws of Ontario, Canada (“Company”),
and U.S. Bank National Association, a U.S. national banking organization (“Trustee”).

 

Each party agrees as
follows for the benefit of the other party and for the equal and ratable benefit of the Holders of the Securities issued under
this Indenture.

 

Article
I.

DEFINITIONS AND INCORPORATION BY REFERENCE

 

Section 1.1.           Definitions.

 

“Additional
Amounts” means any additional amounts which are required hereby or by any Security, under circumstances specified herein
or therein, to be paid by the Company in respect of certain taxes imposed on Holders specified herein or therein and which are
owing to such Holders.

 

“Affiliate”
of any specified person means any other person directly or indirectly controlling or controlled by or under common control with
such specified person. For the purposes of this definition, “control” (including, with correlative meanings, the terms
“controlled by” and “under common control with”), as used with respect to any person, shall mean the possession,
directly or indirectly, of the power to direct or cause the direction of the management or policies of such person, whether through
the ownership of voting securities or by agreement or otherwise.

 

“Agent”
means any Registrar, Paying Agent or Notice Agent.

 

“Board of Directors”
means the board of directors of the Company or any duly authorized committee thereof.

 

“Board Resolution”
means a copy of a resolution certified by the Secretary or an Assistant Secretary of the Company to have been adopted by the Board
of Directors or pursuant to authorization by the Board of Directors and to be in full force and effect on the date of the certificate
and delivered to the Trustee.

 

“Business Day”
means, unless otherwise provided by Board Resolution, Officer’s Certificate or supplemental indenture hereto for a particular
Series, any day except a Saturday, Sunday or a legal holiday in The City of New York (or in connection with any payment, the place
of payment) on which banking institutions are authorized or required by law, regulation or executive order to close.

 

“Capital Stock”
means any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock.

 

“Company”
means the party named as such above until a successor replaces it and thereafter means the successor.

 

“Company Order”
means a written order signed in the name of the Company by an Officer.

 

“Corporate Trust
Office” means the office of the Trustee at which at any particular time its corporate trust business related to this
Indenture shall be principally administered, which office at the date of the Indenture is located at the address set forth in Section
10.2, or such other address as the Trustee may designate from time to time by notice to the Holders and the Company.

 

“Default”
means any event which is, or after notice or passage of time or both would be, an Event of Default.

 

    	 	1	 

     

    

 

“Depositary”
means, with respect to the Securities of any Series issuable or issued in whole or in part in the form of one or more Global Securities,
the person designated as Depositary for such Series by the Company, which Depositary shall be a clearing agency registered under
the Exchange Act; and if at any time there is more than one such person, “Depositary” as used with respect to the Securities
of any Series shall mean the Depositary with respect to the Securities of such Series.

 

“Discount Security”
means any Security that provides for an amount less than the stated principal amount thereof to be due and payable upon declaration
of acceleration of the maturity thereof pursuant to Section 6.2.

 

“Dollars”
and “$” means the currency of The United States of America.

 

“Exchange Act”
means the U.S. Securities Exchange Act of 1934, as amended.

 

“Foreign Currency”
means any currency or currency unit issued by a government other than the government of The United States of America.

 

“Foreign Government
Obligations” means, with respect to Securities of any Series that are denominated in a Foreign Currency, direct obligations
of, or obligations guaranteed by, the government that issued or caused to be issued such currency for the payment of which obligations
its full faith and credit is pledged and which are not callable or redeemable at the option of the issuer thereof.

 

“GAAP”
means accounting principles generally accepted in the United States of America set forth in the opinions and pronouncements of
the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant
segment of the accounting profession, which are in effect as of the date of determination.

 

“Global Security”
or “Global Securities” means a Security or Securities, as the case may be, in the form established pursuant
to Section 2.2 evidencing all or part of a Series of Securities, issued to the Depositary for such Series or its nominee, and registered
in the name of such Depositary or nominee.

 

“Holder”
or “Securityholder” means a person in whose name a Security is registered.

 

“Indenture”
means this Indenture as amended or supplemented from time to time and shall include the form and terms of particular Series of
Securities established as contemplated hereunder.

 

“interest”
solely with respect to any Discount Security which by its terms bears interest only after Maturity, means interest payable after
Maturity.

 

“Maturity,”
when used with respect to any Security, means the date on which the principal of such Security becomes due and payable as therein
or herein provided, whether at the Stated Maturity or by declaration of acceleration, call for redemption or otherwise.

 

“Officer”
means any one of the Chief Executive Officer, the President, the Chief Financial Officer, the Treasurer or any Assistant Treasurer,
the Secretary or any Assistant Secretary, and any Vice President of the Company.

 

“Officer’s
Certificate” means a certificate signed by any Officer, which complies with Section 10.4.

 

“Opinion of
Counsel” means a written opinion of legal counsel who is acceptable to the Trustee, acting reasonably. The counsel may
be an employee of or counsel to the Company.

 

    	 	2	 

     

    

 

“person”
means any individual, corporation, partnership, joint venture, association, limited liability company, joint-stock company, trust,
unincorporated organization or government or any agency or political subdivision thereof.

 

“principal”
of a Security means the principal of the Security plus, when appropriate, the premium, if any, on, and any Additional Amounts in
respect of, the Security.

 

“Responsible
Officer” means any officer of the Trustee in its Corporate Trust Office having responsibility for administration of this
Indenture and also means, with respect to a particular corporate trust matter, any other officer to whom any corporate trust matter
relating to this Indenture is referred because of his or her knowledge of and familiarity with a particular subject.

 

“SEC”
means the U.S. Securities and Exchange Commission.

 

“Securities”
means the debentures, notes or other debt instruments of the Company of any Series authenticated and delivered under this Indenture.

 

“Series”
or “Series of Securities” means each series of debentures, notes or other debt instruments of the Company created
pursuant to Sections 2.1 and 2.2 hereof.

 

“Stated Maturity”
when used with respect to any Security, means the date specified in such Security as the fixed date on which the principal of such
Security or interest is due and payable.

 

“Subsidiary”
of any specified person means any corporation, association or other business entity of which more than 50% of the total voting
power of Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers
or trustees thereof is at the time owned or controlled, directly or indirectly, by such person or one or more of the other Subsidiaries
of that person or a combination thereof.

 

“TIA”
means the U.S. Trust Indenture Act of 1939 (15 U.S. Code §§ 77aaa-77bbbb) as in effect on the date of this Indenture;
provided, however, that in the event the U.S. Trust Indenture Act of 1939 is amended after such date, “TIA”
means, to the extent required by any such amendment, the U.S. Trust Indenture Act as so amended.

 

“Trustee”
means the person named as the “Trustee” in the first paragraph of this instrument until a successor Trustee shall have
become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include
each person who is then a Trustee hereunder, and if at any time there is more than one such person, “Trustee” as used
with respect to the Securities of any Series shall mean the Trustee with respect to Securities of that Series.

 

“U.S. Government
Obligations” means securities which are direct obligations of, or guaranteed by, The United States of America for the
payment of which its full faith and credit is pledged and which are not callable or redeemable at the option of the issuer thereof,
and shall also include a depositary receipt issued by a bank or trust company as custodian with respect to any such U.S. Government
Obligation or a specific payment of interest on or principal of any such U.S. Government Obligation held by such custodian for
the account of the holder of a depositary receipt, provided that (except as required by law) such custodian is not authorized
to make any deduction from the amount payable to the holder of such depositary receipt from any amount received by the custodian
in respect of the U.S. Government Obligation evidenced by such depositary receipt.

 

    	 	3	 

     

    

 

Section 1.2.           Other
Definitions.

 

	 	 	DEFINED IN
	TERM	 	SECTION
	 	 	 
	“Bankruptcy Law”	 	6.1
	“Custodian”	 	6.1
	“Event of Default”	 	6.1
	“Judgment Currency”	 	10.16
	“mandatory sinking fund payment”	 	11.1
	“New York Banking Day”	 	10.16
	“Notice Agent”	 	2.4
	“optional sinking fund payment”	 	11.1
	“Paying Agent”	 	2.4
	“Registrar”	 	2.4
	“Required Currency”	 	10.16
	“successor person”	 	5.1

 

Section 1.3.          Incorporation
by Reference of U.S. Trust Indenture Act.

 

Whenever this Indenture
refers to a provision of the TIA, the provision is incorporated by reference in and made a part of this Indenture. The following
TIA terms used in this Indenture have the following meanings:

 

“Commission”
means the SEC.

 

“indenture securities”
means the Securities.

 

“indenture security
holder” means a Securityholder.

 

“indenture to
be qualified” means this Indenture.

 

“indenture trustee”
or “institutional trustee” means the Trustee.

 

“obligor” on
the indenture securities means the Company and any successor obligor upon the Securities.

 

All other terms used
in this Indenture that are defined by the TIA, defined by TIA reference to another statute or defined by SEC rule under the TIA
and not otherwise defined herein are used herein as so defined.

 

Section 1.4.          Rules
of Construction.

 

Unless the context otherwise
requires:

 

		(a)	a term has the meaning assigned to it;

 

		(b)	an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

 

		(c)	“or” is not exclusive;

 

		(d)	words in the singular include the plural, and in the plural include the singular; and

 

		(e)	provisions apply to successive events and transactions.

 

    	 	4	 

     

    

  

Article
II.

THE
SECURITIES

 

Section 2.1.           Issuable
in Series.

 

The aggregate principal
amount of Securities that may be authenticated and delivered under this Indenture is unlimited. The Securities may be issued in
one or more Series. All Securities of a Series shall be identical except as may be set forth or determined in the manner provided
in a Board Resolution, supplemental indenture or Officer’s Certificate detailing the adoption of the terms thereof pursuant
to authority granted under a Board Resolution. In the case of Securities of a Series to be issued from time to time, the Board
Resolution, Officer’s Certificate or supplemental indenture detailing the adoption of the terms thereof pursuant to authority
granted under a Board Resolution may provide for the method by which specified terms (such as interest rate, maturity date, record
date or date from which interest shall accrue) are to be determined. Securities may differ between Series in respect of any matters,
provided that all Series of Securities shall be equally and ratably entitled to the benefits of the Indenture.

 

Section 2.2.          Establishment
of Terms of Series of Securities.

 

At or prior to the issuance
of any Securities within a Series, the following shall be established (as to the Series generally, in the case of Subsection 2.2.1
and either as to such Securities within the Series or as to the Series generally in the case of Subsections 2.2.2 through 2.2.22)
by or pursuant to a Board Resolution, and set forth or determined in the manner provided in a Board Resolution, supplemental indenture
hereto or Officer’s Certificate:

 

2.2.1       the
title (which shall distinguish the Securities of that particular Series from the Securities of any other Series) and ranking (including
the terms of any subordination provisions) of the Series;

 

2.2.2       the
price or prices (expressed as a percentage of the principal amount thereof) at which the Securities of the Series will be issued;

 

2.2.3       any
limit upon the aggregate principal amount of the Securities of the Series which may be authenticated and delivered under this Indenture
(except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities
of the Series pursuant to Section 2.7, 2.8, 2.11, 3.6 or 9.6);

 

2.2.4       the
date or dates on which the principal of the Securities of the Series is payable;

 

2.2.5       the
rate or rates (which may be fixed or variable) per annum or, if applicable, the method used to determine such rate or rates (including,
but not limited to, any commodity, commodity index, stock exchange index or financial index) at which the Securities of the Series
shall bear interest, if any, the date or dates from which such interest, if any, shall accrue, the date or dates on which such
interest, if any, shall commence and be payable and any regular record date for the interest payable on any interest payment date
and the basis upon which interest shall be calculated;

 

2.2.6       the
place or places where the principal of and interest, if any, on the Securities of the Series shall be payable, where the Securities
of such Series may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company
in respect of the Securities of such Series and this Indenture may be delivered, and the method of such payment, if by wire transfer,
mail or other means;

 

2.2.7       if
applicable, the period or periods within which, the price or prices at which and the terms and conditions upon which the Securities
of the Series may be redeemed, in whole or in part, at the option of the Company;

 

2.2.8       the
obligation, if any, of the Company to redeem or purchase the Securities of the Series pursuant to any sinking fund or analogous
provisions or at the option of a Holder thereof and the period or periods within which, the price or prices at which and the terms
and conditions upon which Securities of the Series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;

 

2.2.9       the
dates, if any, on which and the price or prices at which the Securities of the Series will be repurchased by the Company at the
option of the Holders thereof and other detailed terms and provisions of such repurchase obligations;

 

    	 	5	 

     

    

  

2.2.10       if
other than denominations of $1,000 and any integral multiple thereof, the denominations in which the Securities of the Series shall
be issuable;

 

2.2.11       the
forms of the Securities of the Series and whether the Securities will be issuable as Global Securities;

 

2.2.12       if
other than the principal amount thereof, the portion of the principal amount of the Securities of the Series that shall be payable
upon declaration of acceleration of the maturity thereof pursuant to Section 6.2;

 

2.2.13       the
currency of denomination of the Securities of the Series, which may be Dollars or any Foreign Currency, and if such currency of
denomination is a composite currency, the agency or organization, if any, responsible for overseeing such composite currency;

 

2.2.14       the
designation of the currency, currencies or currency units in which payment of the principal of and interest, if any, on the Securities
of the Series will be made;

 

2.2.15      if
payments of principal of or interest, if any, on the Securities of the Series are to be made in one or more currencies or currency
units other than that or those in which such Securities are denominated, the manner in which the exchange rate with respect to
such payments will be determined;

 

2.2.16     the
manner in which the amounts of payment of principal of or interest, if any, on the Securities of the Series will be determined,
if such amounts may be determined by reference to an index based on a currency or currencies or by reference to a commodity, commodity
index, stock exchange index or financial index;

 

2.2.17     the
provisions, if any, relating to any security provided for the Securities of the Series;

 

2.2.18     any
addition to, deletion of or change in the Events of Default which applies to any Securities of the Series and any change in the
right of the Trustee or the requisite Holders of such Securities to declare the principal amount thereof due and payable pursuant
to Section 6.2;

 

2.2.19     any
addition to, deletion of or change in the covenants set forth in Articles IV or V which applies to Securities of the Series;

 

2.2.20     any
Depositaries, interest rate calculation agents, exchange rate calculation agents or other agents with respect to Securities of
such Series if other than those appointed herein;

 

2.2.21     the
provisions, if any, relating to conversion or exchange of any Securities of such Series, including if applicable, the conversion
or exchange price, the conversion or exchange period, provisions as to whether conversion or exchange will be mandatory, at the
option of the Holders thereof or at the option of the Company, the events requiring an adjustment of the conversion price or exchange
price and provisions affecting conversion or exchange if such Series of Securities are redeemed; and

 

2.2.22       any
other terms of the Series (which may supplement, modify or delete any provision of this Indenture insofar as it applies to such
Series), including any terms that may be required under applicable law or regulations or advisable in connection with the marketing
of Securities of that Series.

 

All Securities of any
one Series need not be issued at the same time and may be issued from time to time, consistent with the terms of this Indenture,
if so provided by or pursuant to the Board Resolution, supplemental indenture hereto or Officer’s Certificate referred to
above.

 

Section 2.3.           Execution
and Authentication.

 

An Officer shall sign
the Securities for the Company by manual or facsimile signature.

 

    	 	6	 

     

    

  

If an Officer whose signature
is on a Security no longer holds that office at the time the Security is authenticated, the Security shall nevertheless be valid.

 

A Security shall not
be valid until authenticated by the manual signature of the Trustee or an authenticating agent. The signature shall be conclusive
evidence that the Security has been authenticated under this Indenture.

 

The Trustee shall at
any time, and from time to time, authenticate Securities for original issue in the principal amount provided in the Board Resolution,
supplemental indenture hereto or Officer’s Certificate, upon receipt by the Trustee of a Company Order. Each Security shall
be dated the date of its authentication.

 

The aggregate principal
amount of Securities of any Series outstanding at any time may not exceed any limit upon the maximum principal amount for such
Series set forth in the Board Resolution, supplemental indenture hereto or Officer’s Certificate delivered pursuant to Section
2.2, except as provided in Section 2.8.

 

Prior to the issuance
of Securities of any Series, the Trustee shall have received and (subject to Section 7.2) shall be fully protected in relying on:
(a) the Board Resolution, supplemental indenture hereto or Officer’s Certificate establishing the form of the Securities
of that Series or of Securities within that Series and the terms of the Securities of that Series or of Securities within that
Series, (b) an Officer’s Certificate complying with Section 10.4, and (c) an Opinion of Counsel complying with Section 10.4.

 

The Trustee shall have
the right to decline to authenticate and deliver any Securities of such Series: (a) if the Trustee, being advised by counsel, determines
that such action may not be taken lawfully; or (b) if the Trustee in good faith by its board of directors or trustees, executive
committee or a trust committee of directors and/or vice-presidents or a committee of Responsible Officers shall determine that
such action would expose the Trustee to personal liability to Holders of any then outstanding Series of Securities.

 

The Trustee may appoint
an authenticating agent acceptable to the Company to authenticate Securities. An authenticating agent may authenticate Securities
whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such
agent. An authenticating agent has the same rights as an Agent to deal with the Company or an Affiliate of the Company.

 

Section 2.4.           Registrar
and Paying Agent.

 

The Company shall maintain,
with respect to each Series of Securities, at the place or places specified with respect to such Series pursuant to Section 2.2,
an office or agency where Securities of such Series may be presented or surrendered for payment (“Paying Agent”),
where Securities of such Series may be surrendered for registration of transfer or exchange (“Registrar”) and
where notices and demands to or upon the Company in respect of the Securities of such Series and this Indenture may be delivered
(“Notice Agent”). The Registrar shall keep a register with respect to each Series of Securities and to their
transfer and exchange. The Company will give prompt written notice to the Trustee of the name and address, and any change in the
name or address, of each Registrar, Paying Agent or Notice Agent. If at any time the Company shall fail to maintain any such required
Registrar, Paying Agent or Notice Agent or shall fail to furnish the Trustee with the name and address thereof, such presentations,
surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee, and the Company hereby appoints
the Trustee as its agent to receive all such presentations, surrenders, notices and demands.

 

The Company may also
from time to time designate one or more co-registrars, additional paying agents or additional notice agents and may from time to
time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve
the Company of its obligations to maintain a Registrar, Paying Agent and Notice Agent in each place so specified pursuant to Section
2.2 for Securities of any Series for such purposes. The Company will give prompt written notice to the Trustee of any such designation
or rescission and of any change in the name or address of any such co-registrar, additional paying agent or additional notice agent.
The term “Registrar” includes any co-registrar; the term “Paying Agent” includes any additional
paying agent; and the term “Notice Agent” includes any additional notice agent. The Company or any of its Affiliates
may serve as Registrar or Paying Agent.

 

    	 	7	 

     

    

  

The Company hereby appoints
the Trustee the initial Registrar, Paying Agent and Notice Agent for each Series unless another Registrar, Paying Agent or Notice
Agent, as the case may be, is appointed prior to the time Securities of that Series are first issued.

 

Section 2.5.          Paying
Agent to Hold Money in Trust.

 

The Company shall require
each Paying Agent other than the Trustee to agree in writing that the Paying Agent will hold in trust, for the benefit of Securityholders
of any Series of Securities, or the Trustee, all money held by the Paying Agent for the payment of principal of or interest on
the Series of Securities, and will notify the Trustee in writing of any default by the Company in making any such payment. While
any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Company at any
time may require a Paying Agent to pay all money held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent
(if other than the Company or a Subsidiary of the Company) shall have no further liability for the money. If the Company or a Subsidiary
of the Company acts as Paying Agent, it shall segregate and hold in a separate trust fund for the benefit of Securityholders of
any Series of Securities all money held by it as Paying Agent. Upon any bankruptcy, reorganization or similar proceeding with respect
to the Company, the Trustee shall serve as Paying Agent for the Securities.

 

Section 2.6.           Securityholder
Lists.

 

The Trustee shall preserve
in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of Securityholders
of each Series of Securities and shall otherwise comply with TIA § 312(a). If the Trustee is not the Registrar, the Company
shall furnish to the Trustee at least ten days before each interest payment date and at such other times as the Trustee may request
in writing a list, in such form and as of such date as the Trustee may reasonably require, of the names and addresses of Securityholders
of each Series of Securities.

 

Section 2.7.           Transfer
and Exchange.

 

Where Securities of a
Series are presented to the Registrar or a co-registrar with a request to register a transfer or to exchange them for an equal
principal amount of Securities of the same Series, the Registrar shall register the transfer or make the exchange if its requirements
for such transactions are met. To permit registrations of transfers and exchanges, the Trustee shall authenticate Securities at
the Registrar’s request. No service charge shall be made for any registration of transfer or exchange (except as otherwise
expressly permitted herein), but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental
charge payable in connection therewith (other than any such transfer tax or similar governmental charge payable upon exchanges
pursuant to Sections 2.11, 3.6 or 9.6).

 

Neither the Company nor
the Registrar shall be required (a) to issue, register the transfer of, or exchange Securities of any Series for the period beginning
at the opening of business fifteen days immediately preceding the sending of a notice of redemption of Securities of that Series
selected for redemption and ending at the close of business on the day such notice is sent, or (b) to register the transfer of
or exchange Securities of any Series selected, called or being called for redemption as a whole or the portion being redeemed of
any such Securities selected, called or being called for redemption in part.

 

Section 2.8.           Mutilated,
Destroyed, Lost and Stolen Securities.

 

If any mutilated Security
is surrendered to the Trustee, the Company shall execute and the Trustee shall authenticate and deliver in exchange therefor a
new Security of the same Series and of like tenor and principal amount and bearing a number not contemporaneously outstanding.

 

    	 	8	 

     

    

  

If there shall be delivered
to the Company and the Trustee (i) evidence to their satisfaction of the destruction, loss or theft of any Security and (ii) such
security or indemnity bond as may be required by each of them to hold itself and any of its agents harmless, then, in the absence
of notice to the Company or the Trustee that such Security has been acquired by a bona fide purchaser, the Company shall execute
and upon its request the Trustee shall authenticate and make available for delivery, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same Series and of like tenor and principal amount and bearing a number not contemporaneously outstanding.

 

In case any such mutilated,
destroyed, lost or stolen Security has become or is about to become due and payable, the Company in its discretion may, instead
of issuing a new Security, pay such Security.

 

Upon the issuance of
any new Security under this Section, the Company may require the payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) connected
therewith.

 

Every new Security of
any Series issued pursuant to this Section in lieu of any destroyed, lost or stolen Security shall constitute an original additional
contractual obligation of the Company, whether or not the destroyed, lost or stolen Security shall be at any time enforceable by
anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Securities
of that Series duly issued hereunder.

 

The provisions of this
Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities.

 

Section 2.9.          Outstanding
Securities.

 

The Securities outstanding
at any time are all the Securities authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation,
those reductions in the interest on a Global Security effected by the Trustee in accordance with the provisions hereof and those
described in this Section as not outstanding.

 

If a Security is replaced
pursuant to Section 2.8, it ceases to be outstanding until the Trustee receives proof satisfactory to it that the replaced Security
is held by a bona fide purchaser.

 

If the Paying Agent (other
than the Company, a Subsidiary of the Company or an Affiliate of the Company) holds on the Maturity of Securities of a Series money
sufficient to pay such Securities payable on that date, then on and after that date such Securities of the Series cease to be outstanding
and interest on them ceases to accrue.

 

The Company may purchase
or otherwise acquire the Securities, whether by open market purchases, negotiated transactions or otherwise. A Security does not
cease to be outstanding because the Company or an Affiliate of the Company holds the Security.

 

In determining whether
the Holders of the requisite principal amount of outstanding Securities have given any request, demand, authorization, direction,
notice, consent or waiver hereunder, the principal amount of a Discount Security that shall be deemed to be outstanding for such
purposes shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon a
declaration of acceleration of the Maturity thereof pursuant to Section 6.2.

 

Section 2.10.          Treasury
Securities.

 

In determining whether
the Holders of the required principal amount of Securities of a Series have concurred in any request, demand, authorization, direction,
notice, consent or waiver, Securities of a Series owned by the Company or any Affiliate of the Company shall be disregarded, except
that for the purposes of determining whether the Trustee shall be protected in relying on any such request, demand, authorization,
direction, notice, consent or waiver only Securities of a Series that a Responsible Officer of the Trustee knows are so owned shall
be so disregarded.

 

    	 	9	 

     

    

  

Section 2.11.          Temporary
Securities.

 

Until definitive Securities
are ready for delivery, the Company may prepare and the Trustee shall authenticate temporary Securities upon a Company Order. Temporary
Securities shall be substantially in the form of definitive Securities but may have variations that the Company considers appropriate
for temporary Securities. Without unreasonable delay, the Company shall prepare and the Trustee upon receipt of a Company Order
shall authenticate definitive Securities of the same Series and date of maturity in exchange for temporary Securities. Until so
exchanged, temporary Securities shall have the same rights under this Indenture as the definitive Securities.

 

Section 2.12.          Cancellation.

 

The Company at any time
may deliver Securities to the Trustee for cancellation. The Registrar and the Paying Agent shall forward to the Trustee any Securities
surrendered to them for registration of transfer, exchange or payment. The Trustee shall cancel all Securities surrendered for
transfer, exchange, payment, replacement or cancellation and shall destroy such canceled Securities (subject to the record retention
requirement of the Exchange Act and the Trustee) and deliver a certificate of such cancellation to the Company upon written request
of the Company. The Company may not issue new Securities to replace Securities that it has paid or delivered to the Trustee for
cancellation.

 

Section 2.13.          Defaulted
Interest.

 

If the Company defaults
in a payment of interest on a Series of Securities, it shall pay the defaulted interest, plus, to the extent permitted by law,
any interest payable on the defaulted interest, to the persons who are Securityholders of the Series on a subsequent special record
date. The Company shall fix the record date and payment date. At least 10 days before the special record date, the Company shall
send to the Trustee and to each Securityholder of the Series a notice that states the special record date, the payment date and
the amount of interest to be paid. The Company may pay defaulted interest in any other lawful manner.

 

Section 2.14.          Global
Securities.

 

2.14.1      Terms
of Securities. A Board Resolution, a supplemental indenture hereto or an Officer’s Certificate shall establish whether
the Securities of a Series shall be issued in whole or in part in the form of one or more Global Securities and the Depositary
for such Global Security or Securities.

 

2.14.2      Transfer
and Exchange. Notwithstanding any provisions to the contrary contained in Section 2.7 of the Indenture and in addition thereto,
any Global Security shall be exchangeable pursuant to Section 2.7 of the Indenture for Securities registered in the names of Holders
other than the Depositary for such Security or its nominee only if (i) such Depositary notifies the Company that it is unwilling
or unable to continue as Depositary for such Global Security or if at any time such Depositary ceases to be a clearing agency registered
under the Exchange Act, and, in either case, the Company fails to appoint a successor Depositary registered as a clearing agency
under the Exchange Act within 90 days of such event or (ii) the Company executes and delivers to the Trustee an Officer’s
Certificate to the effect that such Global Security shall be so exchangeable. Any Global Security that is exchangeable pursuant
to the preceding sentence shall be exchangeable for Securities registered in such names as the Depositary shall direct in writing
in an aggregate principal amount equal to the principal amount of the Global Security with like tenor and terms.

 

Except as provided in
this Section 2.14.2, a Global Security may not be transferred except as a whole by the Depositary with respect to such Global Security
to a nominee of such Depositary, by a nominee of such Depositary to such Depositary or another nominee of such Depositary or by
the Depositary or any such nominee to a successor Depositary or a nominee of such a successor Depositary.

 

None of the Trustee or any Agent shall have
any obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture
or under applicable law with respect to any transfer of any interest in any Security (including any transfers between or among
Depositary participants, members or beneficial owners in any Global Security) other than to require delivery of such certificates
and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of,
this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

 

    	 	10	 

     

    

  

None of the Trustee or any Agent shall have
any responsibility or obligation to any beneficial owner of a Global Security, a member of, or a participant in the Depositary
or other Person with respect to the accuracy of the records of the Depositary or its nominee or of any participant or member thereof,
with respect to any ownership interest in the Securities or with respect to the delivery to any participant, member, beneficial
owner or other Person (other than the Depositary) of any notice (including any notice of optional redemption) or the payment of
any amount, under or with respect to such Securities.

 

2.14.3       Legend.
Any Global Security issued hereunder shall bear a legend in substantially the following form:

 

“This Security
is a Global Security within the meaning of the Indenture hereinafter referred to and is registered in the name of the Depositary
or a nominee of the Depositary. This Security is exchangeable for Securities registered in the name of a person other than the
Depositary or its nominee only in the limited circumstances described in the Indenture, and may not be transferred except as a
whole by the Depositary to a nominee of the Depositary, by a nominee of the Depositary to the Depositary or another nominee of
the Depositary or by the Depositary or any such nominee to a successor Depositary or a nominee of such a successor Depositary.”

 

2.14.4       Acts
of Holders. The Depositary, as a Holder, may appoint agents and otherwise authorize participants to give or take any request,
demand, authorization, direction, notice, consent, waiver or other action which a Holder is entitled to give or take under the
Indenture.

 

2.14.5       Payments.
Notwithstanding the other provisions of this Indenture, unless otherwise specified as contemplated by Section 2.2, payment of the
principal of and interest, if any, on any Global Security shall be made to the Holder thereof.

 

2.14.6       Consents,
Declaration and Directions. The Company, the Trustee and any Agent shall treat a person as the Holder of such principal amount
of outstanding Securities of such Series represented by a Global Security as shall be specified in a written statement of the Depositary
or by the applicable procedures of such Depositary with respect to such Global Security, for purposes of obtaining any consents,
declarations, waivers or directions required to be given by the Holders pursuant to this Indenture.

 

Section 2.15.          CUSIP
Numbers.

 

The Company in issuing
the Securities may use “CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP”
numbers in notices of redemption as a convenience to Holders; provided that any such notice may state that no representation
is made as to the correctness of such numbers either as printed on the Securities or as contained in any notice of a redemption
and that reliance may be placed only on the other elements of identification printed on the Securities, and any such redemption
shall not be affected by any defect in or omission of such numbers.

 

Article
III.

REDEMPTION

 

Section 3.1.          Notice
to Trustee.

 

The Company may, with
respect to any Series of Securities, reserve the right to redeem and pay the Series of Securities or may covenant to redeem and
pay the Series of Securities or any part thereof prior to the Stated Maturity thereof at such time and on such terms as provided
for in such Securities. If a Series of Securities is redeemable and the Company wants or is obligated to redeem prior to the Stated
Maturity thereof all or part of the Series of Securities pursuant to the terms of such Securities, it shall notify the Trustee
in writing of the redemption date and the principal amount of Series of Securities to be redeemed. The Company shall give the notice
at least 15 days before the redemption date (or such shorter period as may be acceptable to the Trustee).

 

    	 	11	 

     

    

 

Section 3.2.          Selection
of Securities to be Redeemed.

 

Unless otherwise indicated
for a particular Series by a Board Resolution, a supplemental indenture hereto or an Officer’s Certificate, if less than
all the Securities of a Series are to be redeemed, the Trustee shall select the Securities of the Series to be redeemed in any
manner that the Trustee deems fair and appropriate, including by lot or other method, unless otherwise required by law or applicable
stock exchange requirements (as certified by the Company to the Trustee), subject, in the case of Global Securities, to the applicable
rules and procedures of the Depositary. The Trustee shall make the selection from Securities of the Series outstanding not previously
called for redemption. The Trustee may select for redemption portions of the principal of Securities of the Series that have denominations
larger than $1,000. Securities of the Series and portions of them it selects shall be in amounts of $1,000 or whole multiples of
$1,000 or, with respect to Securities of any Series issuable in other denominations pursuant to Section 2.2.10, the minimum principal
denomination for each Series and the authorized integral multiples thereof. Provisions of this Indenture that apply to Securities
of a Series called for redemption also apply to portions of Securities of that Series called for redemption.

 

Section 3.3.          Notice
of Redemption.

 

Unless otherwise indicated
for a particular Series by Board Resolution, a supplemental indenture hereto or an Officer’s Certificate, at least 15 days
but not more than 60 days before a redemption date, the Company shall mail a notice of redemption by first-class mail to each Holder
whose Securities are to be redeemed, with a copy to the Trustee.

 

The notice shall identify
the Securities of the Series to be redeemed and shall state:

 

(a)       the
redemption date;

 

(b)       the
redemption price;

 

(c)       the
name and address of the Paying Agent;

 

(d)       if
any Securities are being redeemed in part, the portion of the principal amount of such Securities to be redeemed and that, after
the redemption date and upon surrender of such Security, a new Security or Securities in principal amount equal to the unredeemed
portion of the original Security shall be issued in the name of the Holder thereof upon cancellation of the original Security;

 

(e)       that
Securities of the Series called for redemption must be surrendered to the Paying Agent to collect the redemption price;

 

(f)       that
interest on Securities of the Series called for redemption ceases to accrue on and after the redemption date unless the Company
defaults in the deposit of the redemption price;

 

(g)       the
CUSIP number, if any; and

 

(h)       any
other information as may be required by the terms of the particular Series or the Securities of a Series being redeemed.

 

At the Company’s
request, the Trustee shall give the notice of redemption in the Company’s name and at its expense, provided, however, that
the Company has delivered to the Trustee, at least 10 days (unless a shorter time shall be acceptable to the Trustee) prior to
the notice date, an Officer’s Certificate requesting that the Trustee give such notice and setting forth the information
to be stated in such notice in the form of such notice.

 

    	 	12	 

     

    

  

Section 3.4.          Effect
of Notice of Redemption.

 

Once notice of redemption
is sent as provided in Section 3.3, Securities of a Series called for redemption become due and payable on the redemption date
and at the redemption price. Except as otherwise provided in the supplemental indenture, Board Resolution or Officer’s Certificate
for a Series, a notice of redemption may not be conditional. Upon surrender to the Paying Agent, such Securities shall be paid
at the redemption price plus accrued interest to the redemption date.

 

Section 3.5.          Deposit
of Redemption Price.

 

On or before 11:00 a.m.,
New York City time, on the redemption date, the Company shall deposit with the Paying Agent money sufficient to pay the redemption
price of and accrued interest, if any, on all Securities to be redeemed on that date.

 

Section 3.6.          Securities
Redeemed in Part.

 

Upon surrender of a
Security that is redeemed in part, the Trustee shall authenticate for the Holder a new Security of the same Series and the same
maturity equal in principal amount to the unredeemed portion of the Security surrendered.

 

Article
IV.

COVENANTS

 

Section 4.1.          Payment
of Principal and Interest.

 

The Company covenants
and agrees for the benefit of the Holders of each Series of Securities that it will duly and punctually pay the principal of and
interest, if any, on the Securities of that Series in accordance with the terms of such Securities and this Indenture. On or before
11:00 a.m., New York City time, on the applicable payment date, the Company shall deposit with the Paying Agent money sufficient
to pay the principal of and interest, if any, on the Securities of each Series in accordance with the terms of such Securities
and this Indenture.

 

Section 4.2.          SEC
Reports.

 

To the extent any Securities
of a Series are outstanding, the Company shall deliver to the Trustee within 15 days after it files them with the SEC copies of
the annual reports and of the information, documents, and other reports (or copies of such portions of any of the foregoing as
the SEC may by rules and regulations prescribe) which the Company is required to file with the SEC pursuant to Section 13 or 15(d)
of the Exchange Act. The Company also shall comply with the other provisions of TIA § 314(a). Reports, information and documents
filed with the SEC via the EDGAR system will be deemed to be delivered to the Trustee as of the time of such filing via EDGAR for
purposes of this Section 4.2; provided, however, that the Trustee shall have no obligation whatsoever to determine whether or not
such information, documents or reports have been filed via EDGAR.

 

Delivery of reports,
information and documents to the Trustee under this Section 4.2 are for informational purposes only and the Trustee’s receipt
of the foregoing shall not constitute constructive or actual notice of any information contained therein or determinable from information
contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled
to rely exclusively on Officer’s Certificates).

 

Section 4.3.          Compliance
Certificate.

 

To the extent any Securities
of a Series are outstanding, the Company shall deliver to the Trustee, within 120 days after the end of each fiscal year of the
Company, commencing January 1, 2019, an Officer’s Certificate stating that a review of the activities of the Company and
its Subsidiaries during the preceding fiscal year has been made under the supervision of the signing Officers with a view to determining
whether the Company has kept, observed, performed and fulfilled its obligations under this Indenture, and further stating, as to
each such Officer signing such certificate, that to the best of his/her knowledge the Company has kept, observed, performed and
fulfilled each and every covenant contained in this Indenture and is not in default in the performance or observance of any of
the terms, provisions and conditions hereof (or, if a Default or Event of Default shall have occurred, describing all such Defaults
or Events of Default of which the Officer may have knowledge and the nature and status thereof).

 

    	 	13	 

     

    

  

The Company will, so
long as any of the Securities are outstanding, deliver to the Trustee, promptly upon becoming aware of any Default or Event of
Default, an Officer’s Certificate specifying such Default or Event of Default and what action the Company is taking or proposes
to take with respect thereto.

 

Section 4.4.          Stay,
Extension and Usury Laws.

 

The Company covenants
(to the extent that it may lawfully do so) that it will not at any time insist upon, plead, or in any manner whatsoever claim or
take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force, which
may affect the covenants or the performance of this Indenture or the Securities; and the Company (to the extent it may lawfully
do so) hereby expressly waives all benefit or advantage of any such law and covenants that it will not, by resort to any such law,
hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every
such power as though no such law has been enacted.

 

Section 4.5.          Corporate
Existence.

 

Subject to Article V,
the Company will do or cause to be done all things necessary to maintain its existence as a corporation incorporated, amalgamated
or continued under the laws of the Province of Ontario; provided, however, that the Company shall not be required to maintain such
existence if the Board of Directors shall determine that the maintenance thereof is no longer desirable in the conduct of the business
of the Company and its Subsidiaries taken as a whole and that the loss thereof is not adverse in any material respect to the Holders.

 

Article
V.

SUCCESSORS

 

Section 5.1.           When
Company May Merge, Amalgamate, Etc.

 

The Company shall not
consolidate or amalgamate with or merge with or into, or convey, transfer or lease all or substantially all of its properties and
assets to, any person (a “successor person”) unless:

 

(a)       the
Company is the surviving or continuing corporation or the successor person (if other than the Company) is a corporation, partnership,
limited liability company or trust organized and validly existing under the laws of Canada or any province or territory thereof
or any U.S. domestic jurisdiction, and assumes by operation of law or by supplemental indenture the Company’s obligations
on the Securities and under this Indenture; and

 

(b)       immediately
after giving effect to the transaction, no Default or Event of Default, shall have occurred and be continuing.

 

The Company shall deliver
to the Trustee prior to or concurrently with the consummation of the proposed transaction an Officer’s Certificate to the
foregoing effect and an Opinion of Counsel stating that the proposed transaction and any supplemental indenture comply with this
Indenture.

 

Notwithstanding the above,
any Subsidiary of the Company may consolidate or amalgamate with, merge into or transfer all or part of its properties to the Company.
Neither an Officer’s Certificate nor an Opinion of Counsel shall be required to be delivered in connection therewith.

 

Section 5.2.           Successor
Corporation Substituted.

 

Upon any consolidation,
amalgamation or merger, or any sale, lease, conveyance or other disposition of all or substantially all of the assets of the Company
in accordance with Section 5.1, the successor person formed by such consolidation or into or with which the Company is merged or
amalgamated or continuing from such merger or amalgamation or to which such sale, lease, conveyance or other disposition is made
shall succeed to, and be substituted for, and may exercise every right and power of, the Company under this Indenture with the
same effect as if such successor person has been named as the Company herein; provided, however, that the predecessor
Company in the case of a sale, conveyance or other disposition (other than a lease) shall be released from all obligations and
covenants under this Indenture and the Securities.

 

    	 	14	 

     

    

 

Article
VI.

DEFAULTS AND REMEDIES

 

Section 6.1.           Events
of Default.

 

“Event of Default,”
wherever used herein with respect to Securities of any Series, means any one of the following events, unless in the establishing
Board Resolution, supplemental indenture or Officer’s Certificate, it is provided that such Series shall not have the benefit
of said Event of Default:

 

(a)       default
in the payment of any interest on any Security of that Series when it becomes due and payable, and continuance of such default
for a period of 30 days (unless the entire amount of such payment is deposited by the Company with the Trustee or with a Paying
Agent prior to 11:00 a.m., New York City time, on the 30th day of such period); or

 

(b)       default
in the payment of principal of any Security of that Series at its Maturity; or

 

(c)       default
in the performance or breach of any covenant or warranty of the Company in this Indenture (other than defaults pursuant to paragraphs
(a) or (b) above or pursuant to a covenant or warranty that has been included in this Indenture solely for the benefit of Series
of Securities other than that Series), which default continues uncured for a period of 60 days after there has been given, by registered
or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal
amount of the outstanding Securities of that Series a written notice specifying such default or breach and requiring it to be remedied
and stating that such notice is a “Notice of Default” hereunder; or

 

(d)       the
Company pursuant to or within the meaning of any Bankruptcy Law:

 

(i)         commences
a voluntary case, proceeding or other action seeking relief under any Bankruptcy Law,

 

(ii)        consents
to the entry of an order for relief against it in an involuntary case, proceeding or other action,

 

(iii)       consents
to the appointment of a Custodian of it or for all or substantially all of its property,

 

(iv)       makes
a general assignment for the benefit of its creditors or a proposal under any Bankruptcy Law, or

 

(v)        generally
is unable to pay its debts as the same become due; or

 

(e)           (e)            a
court of competent jurisdiction enters or makes an order, adjudication, appointment or decree under any Bankruptcy Law that:

 

(i)         is
for relief against the Company in an involuntary case, proceeding or other action,

 

    	 	15	 

     

    

  

(ii)        appoints
a Custodian of the Company or for all or substantially all of its property, or

 

(iii)       orders
the winding-up or liquidation of the Company,

 

and the order, adjudication,
appointment or decree remains unstayed and in effect for 60 days; or 

 

(f)            any
other Event of Default provided with respect to Securities of that Series, which is specified in a Board Resolution, a supplemental
indenture hereto or an Officer’s Certificate, in accordance with Section 2.2.18.

 

The term “Bankruptcy
Law” means title 11, U.S. Code, the Bankruptcy and Insolvency Act (Canada), the Companies Creditors Arrangement
Act (Canada), the Winding-up and Restructuring Act (Canada) (or any similar Federal, Provincial, State or foreign law
for the relief of debtors. The term “Custodian” means any receiver, receiver and manager, interim receiver,
trustee, assignee, liquidator or similar official under any Bankruptcy Law.

 

Section 6.2.          Acceleration
of Maturity; Rescission and Annulment.

 

If an Event of Default
with respect to Securities of any Series at the time outstanding occurs and is continuing (other than an Event of Default referred
to in Section 6.1(d) or (e)) then in every such case the Trustee or the Holders of not less than 25% in principal amount of the
outstanding Securities of that Series may declare the principal amount (or, if any Securities of that Series are Discount Securities,
such portion of the principal amount as may be specified in the terms of such Securities) of and accrued and unpaid interest, if
any, on all of the Securities of that Series to be due and payable immediately, by a notice in writing to the Company (and to the
Trustee if given by Holders), and upon any such declaration such principal amount (or specified amount) and accrued and unpaid
interest, if any, shall become immediately due and payable. If an Event of Default specified in Section 6.1(d) or (e) shall occur,
the principal amount (or specified amount) of and accrued and unpaid interest, if any, on all outstanding Securities shall ipso
facto become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holder.

 

At any time after such
a declaration of acceleration with respect to any Series has been made and before a judgment or decree for payment of the money
due has been obtained by the Trustee as hereinafter in this Article provided, the Holders of a majority in principal amount of
the outstanding Securities of that Series, by written notice to the Company and the Trustee, may rescind and annul such declaration
and its consequences if all Events of Default with respect to Securities of that Series, other than the non-payment of the principal
and interest, if any, of Securities of that Series which have become due solely by such declaration of acceleration, have been
cured or waived as provided in Section 6.13.

 

No such rescission shall
affect any subsequent Default or impair any right consequent thereon.

 

Section 6.3.           Collection
of Indebtedness and Suits for Enforcement by Trustee.

 

The Company covenants
that if

 

(a)       default
is made in the payment of any interest on any Security when such interest becomes due and payable and such default continues for
a period of 30 days, or

 

(b)       default
is made in the payment of principal of any Security at the Maturity thereof, or

 

(c)       default
is made in the deposit of any sinking fund payment, if any, when and as due by the terms of a Security,

 

then, the Company will, upon demand
of the Trustee, pay to it, for the benefit of the Holders of such Securities, the whole amount then due and payable on such Securities
for principal and interest and, to the extent that payment of such interest shall be legally enforceable, interest on any overdue
principal and any overdue interest at the rate or rates prescribed therefor in such Securities, and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

 

    	 	16	 

     

    

 

If the Company fails
to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may institute
a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final decree
and may enforce the same against the Company or any other obligor upon such Securities and collect the moneys adjudged or deemed
to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Securities, wherever
situated.

 

If an Event of Default
with respect to any Securities of any Series occurs and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such Series by such appropriate judicial proceedings as the Trustee
shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement
in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy.

 

Section 6.4.            Trustee
May File Proofs of Claim.

 

In case of the pendency
of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or other judicial
proceeding relative to the Company or any other obligor upon the Securities or the property of the Company or of such other obligor
or their creditors, the Trustee (irrespective of whether the principal of the Securities shall then be due and payable as therein
expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company for
the payment of overdue principal or interest) shall be entitled and empowered, by intervention in such proceeding or otherwise,

 

(a)       to
file and prove a claim for the whole amount of principal and interest owing and unpaid in respect of the Securities and to file
such other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim
for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders
allowed in such judicial proceeding, and

 

(b)       to
collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the same,

 

and any custodian, receiver, assignee,
trustee, liquidator, sequestrator or other similar official in any such judicial proceeding is hereby authorized by each Holder
to make such payments to the Trustee and, in the event that the Trustee shall consent to the making of such payments directly to
the Holders, to pay to the Trustee any amount due it for the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.7.

 

Nothing herein contained
shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization,
arrangement, adjustment or composition affecting the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding.

 

Section 6.5.           Trustee
May Enforce Claims Without Possession of Securities.

 

All rights of action
and claims under this Indenture or the Securities may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee
shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision for the payment
of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable
benefit of the Holders of the Securities in respect of which such judgment has been recovered.

 

    	 	17	 

     

    

  

Section 6.6.           Application
of Money Collected.

 

Any money or property
collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed by the Trustee
and, in case of the distribution of such money or property on account of principal or interest, upon presentation of the Securities
and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid:

 

First:            To
the payment of all amounts due the Trustee under Section 7.7; and

 

Second:       To
the payment of the amounts then due and unpaid for principal of and interest on the Securities in respect of which or for the benefit
of which such money has been collected, ratably, without preference or priority of any kind, according to the amounts due and payable
on such Securities for principal and interest, respectively; and

 

Third:           To
the Company.

 

Section 6.7.           Limitation
on Suits.

 

No Holder of any Security
of any Series shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture, or for the
appointment of a receiver or trustee, or for any other remedy hereunder, unless

 

(a)       such
Holder has previously given written notice to the Trustee of a continuing Event of Default with respect to the Securities of that
Series;

 

(b)       the
Holders of not less than 25% in principal amount of the outstanding Securities of that Series shall have made written request to
the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder;

 

(c)       such
Holder or Holders have offered to the Trustee indemnity or security satisfactory to the Trustee against the costs, expenses and
liabilities which might be incurred by the Trustee in compliance with such request;

 

(d)       the
Trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to institute any such proceeding;
and

 

(e)       no
direction inconsistent with such written request has been given to the Trustee during such 60-day period by the Holders of a majority
in principal amount of the outstanding Securities of that Series;

 

it being understood, intended and expressly
covenanted by the Holder of every Security with every other Holder and the Trustee that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice
the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over any other of such Holders
or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all
such Holders of the applicable Series.

 

Section 6.8.           Unconditional
Right of Holders to Receive Principal and Interest.

 

Notwithstanding any other
provision in this Indenture, the Holder of any Security shall have the right, which is absolute and unconditional, to receive payment
of the principal of and interest, if any, on such Security on the Maturity of such Security, including the Stated Maturity expressed
in such Security (or, in the case of redemption, on the redemption date) and to institute suit for the enforcement of any such
payment, and such rights shall not be impaired without the consent of such Holder.

 

    	 	18	 

     

    

  

Section 6.9.           Restoration
of Rights and Remedies.

 

If the Trustee or any
Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued
or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case, subject
to any determination in such proceeding, the Company, the Trustee and the Holders shall be restored severally and respectively
to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though
no such proceeding had been instituted.

 

Section 6.10.           Rights
and Remedies Cumulative.

 

Except as otherwise provided
with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities in Section 2.8, no right or remedy
herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of any other right or remedy, and
every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given
hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder,
or otherwise, shall not, to the extent permitted by law, prevent the concurrent assertion or employment of any other appropriate
right or remedy.

 

Section 6.11.           Delay
or Omission Not Waiver.

 

No delay or omission
of the Trustee or of any Holder of any Securities to exercise any right or remedy accruing upon any Event of Default shall impair
any such right or remedy or constitute a waiver of any such Event of Default or an acquiescence therein. Every right and remedy
given by this Article or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed
expedient, by the Trustee or by the Holders, as the case may be.

 

Section 6.12.           Control
by Holders.

 

The Holders of a majority
in principal amount of the outstanding Securities of any Series shall have the right to direct the time, method and place of conducting
any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred on the Trustee, with respect
to the Securities of such Series, provided that

 

(a)       such
direction shall not be in conflict with any rule of law or with this Indenture,

 

(b)       the
Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction,

 

(c)       subject
to the provisions of Section 7.1, the Trustee shall have the right to decline to follow any such direction if the Trustee in good
faith shall, by a Responsible Officer of the Trustee, determine that the proceeding so directed would involve the Trustee in personal
liability, and

 

(d)       prior
to taking any action as directed under this Section 6.12, the Trustee shall be entitled to indemnity or security satisfactory to
it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction.

 

Section 6.13.           Waiver
of Past Defaults.

 

The Holders of not less
than a majority in principal amount of the outstanding Securities of any Series may on behalf of the Holders of all the Securities
of such Series waive any past Default hereunder with respect to such Series and its consequences, except a Default in the payment
of the principal of or interest on any Security of such Series (provided, however, that the Holders of a majority in principal
amount of the outstanding Securities of any Series may rescind an acceleration and its consequences, including any related payment
default that resulted from such acceleration). Upon any such waiver, such Default shall cease to exist, and any Event of Default
arising therefrom shall be deemed to have been cured, for every purpose of this Indenture; but no such waiver shall extend to any
subsequent or other Default or impair any right consequent thereon.

 

    	 	19	 

     

    

  

Section 6.14.          Undertaking
for Costs.

 

All parties to this Indenture
agree, and each Holder of any Security by his acceptance thereof shall be deemed to have agreed, that any court may in its discretion
require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any
action taken, suffered or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the
costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees,
against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such
party litigant; but the provisions of this Section shall not apply to any suit instituted by the Company, to any suit instituted
by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal
amount of the outstanding Securities of any Series, or to any suit instituted by any Holder for the enforcement of the payment
of the principal of or interest on any Security on or after the Maturity of such Security, including the Stated Maturity expressed
in such Security (or, in the case of redemption, on the redemption date).

 

Article
VII.

TRUSTEE

 

Section 7.1.          Duties
of Trustee.

 

(a)       If
an Event of Default has occurred and is continuing, the Trustee shall exercise the rights and powers vested in it by this Indenture
and use the same degree of care and skill in their exercise as a prudent person would exercise or use under the circumstances in
the conduct of such person’s own affairs.

 

(b)            Except
during the continuance of an Event of Default:

 

(i)       The
Trustee need perform only those duties that are specifically set forth in this Indenture and no others.

 

(ii)       In
the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness
of the opinions expressed therein, upon Officer’s Certificates or Opinions of Counsel furnished to the Trustee and conforming
to the requirements of this Indenture; however, in the case of any such Officer’s Certificates or Opinions of Counsel
which by any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall examine such Officer’s
Certificates and Opinions of Counsel to determine whether or not they conform to the form requirements of this Indenture.

 

(c)           The
Trustee may not be relieved from liability for its own negligent action, its own negligent failure to act or its own willful misconduct,
except that:

 

(i)       This
paragraph does not limit the effect of paragraph (b) of this Section.

 

(ii)       The
Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is proved that the
Trustee was negligent in ascertaining the pertinent facts.

 

    	 	20	 

     

    

  

(iii)       The
Trustee shall not be liable with respect to any action taken, suffered or omitted to be taken by it with respect to Securities
of any Series in good faith in accordance with the direction of the Holders of a majority in principal amount of the outstanding
Securities of such Series relating to the time, method and place of conducting any proceeding for any remedy available to the Trustee,
or exercising any trust or power conferred upon the Trustee, under this Indenture with respect to the Securities of such Series
in accordance with Section 6.12.

 

(d)           Every
provision of this Indenture that in any way relates to the Trustee is subject to paragraph (a), (b) and (c) of this Section.

 

(e)          The
Trustee may refuse to perform any duty or exercise any right or power unless it receives indemnity satisfactory to it against the
costs, expenses and liabilities which might be incurred by it in performing such duty or exercising such right or power.

 

(f)          The
Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Company.
Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

 

(g)          No
provision of this Indenture shall require the Trustee to risk its own funds or otherwise incur any financial liability in the performance
of any of its duties, or in the exercise of any of its rights or powers, if adequate indemnity against such risk is not assured
to the Trustee in its satisfaction.

 

(h)          The
Paying Agent, the Notice Agent, the Registrar and any authenticating agent shall be entitled to the protections and immunities
as are set forth in paragraphs (e), (f) and (g) of this Section and in Section 7.2, each with respect to the Trustee.

 

Section 7.2.            Rights
of Trustee.

 

(a)          The
Trustee may rely on and shall be protected in acting or refraining from acting upon any document (whether in its original or facsimile
form) believed by it to be genuine and to have been signed or presented by the proper person. Except as otherwise provided herein,
the Trustee need not investigate any fact or matter stated in the document.

 

(b)          Before
the Trustee acts or refrains from acting, it may require an Officer’s Certificate or an Opinion of Counsel or both. The Trustee
shall not be liable for any action it takes or omits to take in good faith in reliance on such Officer’s Certificate or Opinion
of Counsel or both.

 

(c)          The
Trustee may act through agents and shall not be responsible for the misconduct or negligence of any agent appointed with due care.
No Depositary shall be deemed an agent of the Trustee and the Trustee shall not be responsible for any act or omission by any Depositary.

 

(d)          The
Trustee shall not be liable for any action it takes or omits to take in good faith which it believes to be authorized or within
its rights or powers, provided that the Trustee’s conduct does not constitute willful misconduct or negligence.

 

(e)          The
Trustee may consult with counsel and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization
and protection in respect of any action taken, suffered or omitted by it hereunder without willful misconduct or negligence, and
in reliance thereon.

 

(f)           The
Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction
of any of the Holders of Securities unless such Holders shall have offered to the Trustee security or indemnity satisfactory to
it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction.

 

(g)           The
Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness
or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts
or matters as it may see fit.

 

    	 	21	 

     

    

  

(h)          The
Trustee shall not be deemed to have notice of any Default or Event of Default unless a Responsible Officer of the Trustee has actual
knowledge thereof or unless written notice of any event which is in fact such a default is received by the Trustee at the Corporate
Trust Office of the Trustee, and such notice references the Securities generally or the Securities of a particular Series and this
Indenture.

 

(i)          In
no event shall the Trustee be liable to any person for special, punitive, indirect, consequential or incidental loss or damage
of any kind whatsoever (including but not limited to lost profits), even if the Trustee has been advised of the likelihood of such
loss or damage.

 

(j)          The
permissive right of the Trustee to take the actions permitted by this Indenture shall not be construed as an obligation or duty
to do so.

 

(k)           The
Trustee may request that the Company deliver an Officers’ Certificate setting forth the names of individuals and/or titles
of officers authorized at such time to take specified actions pursuant to this Indenture, which Officer’s Certificate may
be signed by any person authorized to sign an Officer’s Certificate, including any person specified as so authorized in any
such certificate previously delivered and not superseded.

 

(l)          The
Trustee shall not be required to give any bond or surety in respect of the execution of the trusts and powers or otherwise in respect
of this Indenture.

 

(m)          Under
no circumstances shall the Trustee be liable in its individual capacity for the obligations evidenced by the Securities.

 

Section 7.3.           Individual
Rights of Trustee.

 

The Trustee in its individual
or any other capacity may become the owner or pledgee of Securities and may otherwise deal with the Company or an Affiliate of
the Company with the same rights it would have if it were not Trustee. Any Agent may do the same with like rights. The Trustee
is also subject to Sections 7.10 and 7.11.

 

Section 7.4.           Trustee’s
Disclaimer.

 

The Trustee makes no
representation as to the validity or adequacy of this Indenture or the Securities, it shall not be accountable for the Company’s
use of the proceeds from the Securities, and it shall not be responsible for any statement in the Securities other than its authentication.

 

Section 7.5.           Notice
of Defaults.

 

If a Default or Event
of Default occurs and is continuing with respect to the Securities of any Series and if it is known to a Responsible Officer of
the Trustee, the Trustee shall send to each Securityholder of the Securities of that Series, in the manner set forth in Section
10.2, notice of a Default or Event of Default within 90 days after it occurs or, if later, after a Responsible Officer of the Trustee
has knowledge of such Default or Event of Default. Except in the case of a Default or Event of Default in payment of principal
of or interest on any Security of any Series, or in the payment of any sinking or purchase fund installment, the Trustee may withhold
the notice if and so long as its corporate trust committee or a committee of its Responsible Officers in good faith determines
that withholding the notice is in the interests of Securityholders of that Series.

 

    	 	22	 

     

    

 

Section 7.6.          Reports
by Trustee to Holders.

 

Within 60 days after
May 15 in each year, the Trustee shall transmit by mail to all Securityholders, as their names and addresses appear on the register
kept by the Registrar, a brief report dated as of such May 15, in accordance with, and to the extent required under, TIA §
313.

 

A copy of each report
at the time of its mailing to Securityholders of any Series shall be filed with the SEC and each national securities exchange on
which the Securities of that Series are listed. The Company shall promptly notify the Trustee in writing when Securities of any
Series are listed on any national securities exchange.

 

Section 7.7.          Compensation
and Indemnity.

 

The Company shall pay
to the Trustee from time to time compensation for its services as the Company and the Trustee shall from time to time agree upon
in writing. The Trustee’s compensation shall not be limited by any law on compensation of a trustee of an express trust.
The Company shall reimburse the Trustee upon request for all reasonable out of pocket expenses incurred by it. Such expenses shall
include the reasonable compensation and expenses of the Trustee’s agents and counsel.

 

The Company shall indemnify
each of the Trustee and any predecessor Trustee (including the cost of defending itself) against any cost, expense or liability,
including taxes (other than taxes based upon, measured by or determined by the income of the Trustee) incurred by it except as
set forth in the next paragraph in the performance of its duties under this Indenture as Trustee or Agent. The Trustee shall notify
the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company shall not relieve
the Company of its obligations hereunder, unless and to the extent that the Company is materially prejudiced thereby. The Company
shall defend the claim and the Trustee shall cooperate in the defense. The Trustee may have one separate counsel and the Company
shall pay the reasonable fees and expenses of such counsel. The Company need not pay for any settlement made without its consent,
which consent will not be unreasonably withheld. This indemnification shall apply to officers, directors, employees, shareholders
and agents of the Trustee.

 

The Company need not
reimburse any expense or indemnify against any loss or liability incurred by the Trustee or by any officer, director, employee,
shareholder or agent of the Trustee through willful misconduct or negligence.

 

To secure the Company’s
payment obligations in this Section, the Trustee shall have a lien prior to the Securities of any Series on all money or property
held or collected by the Trustee, except that held in trust to pay principal of and interest on particular Securities of that Series.

 

When the Trustee incurs
expenses or renders services after an Event of Default specified in Section 6.1(d) or (e) occurs, the expenses and the compensation
for the services are intended to constitute expenses of administration under any Bankruptcy Law.

 

The provisions of this
Section shall survive the termination of this Indenture.

 

Section 7.8.          Replacement
of Trustee.

 

A resignation or removal
of the Trustee and appointment of a successor Trustee shall become effective only upon the successor Trustee’s acceptance
of appointment as provided in this Section.

 

The Trustee may resign
with respect to the Securities of one or more Series by so notifying the Company at least 30 days prior to the date of the proposed
resignation. The Holders of a majority in principal amount of the Securities of any Series may remove the Trustee with respect
to that Series by so notifying the Trustee and the Company. The Company may remove the Trustee with respect to Securities of one
or more Series if:

 

(a)       the
Trustee fails to comply with Section 7.10;

 

(b)       the
Trustee is adjudged a bankrupt or an insolvent or an order for relief is entered with respect to the Trustee under any Bankruptcy
Law;

 

    	 	23	 

     

    

 

(c)           (c)          a
Custodian or public officer takes charge of the Trustee or its property; or

 

(d)           the
Trustee becomes incapable of acting.

 

If the Trustee resigns
or is removed or if a vacancy exists in the office of Trustee for any reason, the Company shall promptly appoint a successor Trustee.
Within one year after the successor Trustee takes office, the Holders of a majority in principal amount of the then outstanding
Securities may appoint a successor Trustee to replace the successor Trustee appointed by the Company.

 

If a successor Trustee
with respect to the Securities of any one or more Series does not take office within 60 days after the retiring Trustee resigns
or is removed, the retiring Trustee, the Company or the Holders of at least a majority in principal amount of the Securities of
the applicable Series may petition any court of competent jurisdiction for the appointment of a successor Trustee.

 

A successor Trustee shall
deliver a written acceptance of its appointment to the retiring Trustee and to the Company. Immediately after that, the retiring
Trustee shall transfer all property held by it as Trustee to the successor Trustee subject to the lien provided for in Section
7.7, the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights,
powers and duties of the Trustee with respect to each Series of Securities for which it is acting as Trustee under this Indenture.
A successor Trustee shall mail a notice of its succession to each Securityholder of each such Series. Notwithstanding replacement
of the Trustee pursuant to this Section 7.8, the Company’s obligations under Section 7.7 hereof shall continue for the benefit
of the retiring Trustee with respect to expenses and liabilities incurred by it for actions taken or omitted to be taken in accordance
with its rights, powers and duties under this Indenture prior to such replacement.

 

Section 7.9.          Successor
Trustee by Merger, Etc.

 

If the Trustee consolidates
with, merges or converts into, or transfers all or substantially all of its corporate trust business to, another corporation, the
successor corporation without any further act shall be the successor Trustee, subject to Section 7.10.

 

Section 7.10.          Eligibility;
Disqualification.

 

This Indenture shall
always have a Trustee who satisfies the requirements of TIA § 310(a)(1), (2) and (5). The Trustee shall always have a combined
capital and surplus of at least $25,000,000 as set forth in its most recent published annual report of condition. The Trustee shall
comply with TIA § 310(b).

 

Section 7.11.          Preferential
Collection of Claims Against Company.

 

The Trustee is subject
to TIA § 311(a), excluding any creditor relationship listed in TIA § 311(b). A Trustee who has resigned or been removed
shall be subject to TIA § 311(a) to the extent indicated.

 

Article
VIII.

SATISFACTION AND DISCHARGE; DEFEASANCE

 

Section 8.1.          Satisfaction
and Discharge of Indenture.

 

This Indenture shall
upon Company Order cease to be of further effect (except as hereinafter provided in this Section 8.1), and the Trustee, at the
expense of the Company, shall execute instruments reasonably requested by the Company acknowledging satisfaction and discharge
of this Indenture, when

  

    	 	24	 

     

    

   

(a)          either

 

(i)       all
Securities theretofore authenticated and delivered (other than Securities that have been destroyed, lost or stolen and that have
been replaced or paid) have been delivered to the Trustee for cancellation; or

 

(ii)       all
such Securities not theretofore delivered to the Trustee for cancellation

 

(1)       have
become due and payable, or

 

(2)       will
become due and payable at their Stated Maturity within one year, or

 

(3)       have
been called for redemption or are to be called for redemption within one year under arrangements satisfactory to the Trustee for
the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company, or

 

(4)       are
deemed paid and discharged pursuant to Section 8.3, as applicable;

 

and the Company, in the case of (1), (2)
or (3) above, has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust an amount of money or
U.S. Government Obligations sufficient for the purpose of paying and discharging the entire indebtedness on such Securities not
theretofore delivered to the Trustee for cancellation, for principal and interest to the date of such deposit (in the case of Securities
which have become due and payable on or prior to the date of such deposit) or to the Stated Maturity or redemption date, as the
case may be;

 

(b)           the
Company has paid or caused to be paid all other sums payable hereunder by the Company; and

 

(c)           the
Company has delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the satisfaction and discharge of this Indenture have been complied with.

 

Notwithstanding the satisfaction
and discharge of this Indenture, the obligations of the Company to the Trustee under Section 7.7, and, if money shall have been
deposited with the Trustee pursuant to clause (a) of this Section, the provisions of Sections 2.4, 2.7, 2.8, 8.2 and 8.5 shall
survive.

 

Section 8.2.          Application
of Trust Funds; Indemnification.

 

(a)           Subject
to the provisions of Section 8.5, all money or U.S. Government Obligations deposited with the Trustee pursuant to Section 8.1,
all money and U.S. Government Obligations or Foreign Government Obligations deposited with the Trustee pursuant to Section 8.3
or 8.4 and all money received by the Trustee in respect of U.S. Government Obligations or Foreign Government Obligations deposited
with the Trustee pursuant to Section 8.3 or 8.4, shall be held in trust and applied by it, in accordance with the provisions of
the Securities and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as
its own Paying Agent) to the persons entitled thereto, of the principal and interest for whose payment such money has been deposited
with or received by the Trustee or to make mandatory sinking fund payments or analogous payments as contemplated by Sections 8.3
or 8.4.

 

(b)           The
Company shall pay and shall indemnify the Trustee against any tax, fee or other charge imposed on or assessed against U.S. Government
Obligations or Foreign Government Obligations deposited pursuant to Sections 8.3 or 8.4 or the interest and principal received
in respect of such obligations other than any payable by or on behalf of Holders.

 

    	 	25	 

     

    

 

(c)           The
Trustee shall deliver or pay to the Company from time to time upon Company Order any U.S. Government Obligations or Foreign Government
Obligations or money held by it as provided in Sections 8.3 or 8.4 which, in the opinion of a nationally recognized firm of independent
certified public accountants or investment bank expressed in a written certification thereof delivered to the Trustee, are then
in excess of the amount thereof which then would have been required to be deposited for the purpose for which such U.S. Government
Obligations or Foreign Government Obligations or money were deposited or received. This provision shall not authorize the sale
by the Trustee of any U.S. Government Obligations or Foreign Government Obligations held under this Indenture.

 

Section 8.3.          Legal
Defeasance of Securities of any Series.

 

Unless this Section 8.3
is otherwise specified, pursuant to Section 2.2.22, to be inapplicable to Securities of any Series, the Company shall be deemed
to have paid and discharged the entire indebtedness on all the outstanding Securities of any Series on the 91st day after the date
of the deposit referred to in subparagraph (d) hereof, and the provisions of this Indenture, as it relates to such outstanding
Securities of such Series, shall no longer be in effect (and the Trustee, at the expense of the Company, shall, upon receipt of
a Company Order, execute instruments reasonably requested by the Company acknowledging the same), except as to:

 

(a)            the
rights of Holders of Securities of such Series to receive, from the trust funds described in subparagraph (d) hereof, (i) payment
of the principal of and each installment of principal of and interest on the outstanding Securities of such Series on the Maturity
of such principal or installment of principal or interest and (ii) the benefit of any mandatory sinking fund payments applicable
to the Securities of such Series on the day on which such payments are due and payable in accordance with the terms of this Indenture
and the Securities of such Series;

 

(b)           the
provisions of Sections 2.4, 2.7, 2.8, 7.7, 8.2, 8.3 and 8.5; and

 

(c)           the
rights, powers, trust and immunities of the Trustee hereunder and the Company’s obligations in connection therewith;

 

provided that, the following conditions
shall have been satisfied:

 

(d)           the
Company shall have deposited or caused to be irrevocably deposited (except as provided in Section 8.2(c)) with the Trustee as trust
funds in trust for the purpose of making the following payments, specifically pledged as security for and dedicated solely to the
benefit of the Holders of such Securities (i) in the case of Securities of such Series denominated in Dollars, cash in Dollars
and/or U.S. Government Obligations, or (ii) in the case of Securities of such Series denominated in a Foreign Currency (other than
a composite currency), money and/or Foreign Government Obligations, which through the payment of interest and principal in respect
thereof in accordance with their terms, will provide (and without reinvestment and assuming no tax liability will be imposed on
such Trustee), not later than one day before the due date of any payment of money, an amount in cash, sufficient, in the opinion
of a nationally recognized firm of independent public accountants or investment bank expressed in a written certification thereof
delivered to the Trustee, to pay and discharge each installment of principal of and interest, if any, on and any mandatory sinking
fund payments in respect of all the Securities of such Series on the dates such installments of interest or principal and such
sinking fund payments are due;

 

(e)           such
deposit will not result in a breach or violation of, or constitute a default under, this Indenture or any other agreement or instrument
to which the Company is a party or by which it is bound;

 

(f)            no
Default or Event of Default with respect to the Securities of such Series shall have occurred and be continuing on the date of
such deposit or during the period ending on the 91st day after such date;

 

    	 	26	 

     

    

  

(g)           the
Company shall have delivered to the Trustee an Opinion of Counsel to the effect that (i) the Company has received from, or there
has been published by, the Internal Revenue Service a ruling, or (ii) since the date of execution of this Indenture, there has
been a change in the applicable United States Federal income tax law, in either case to the effect that, and based thereon such
Opinion of Counsel shall confirm that, the Holders of the Securities of such Series will not recognize income, gain or loss for
United States Federal income tax purposes as a result of such deposit, defeasance and discharge and will be subject to United States
Federal income tax on the same amount and in the same manner and at the same times as would have been the case if such deposit,
defeasance and discharge had not occurred;

 

(h)           the
Company shall have delivered to the Trustee an Officer’s Certificate stating that the deposit was not made by the Company
with the intent of defeating, hindering, delaying or defrauding any other creditors of the Company; and

 

(i)             the
Company shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for relating to the defeasance contemplated by this Section have been complied with.

 

Section 8.4.          Covenant
Defeasance.

 

Unless this Section 8.4
is otherwise specified pursuant to Section 2.2.22 to be inapplicable to Securities of any Series, the Company may omit to comply
with respect to the Securities of any Series with any term, provision or condition set forth under Sections 4.2, 4.3, 4.4, 4.5,
and 5.1 as well as any additional covenants specified in a supplemental indenture for such Series of Securities or a Board Resolution
or an Officer’s Certificate delivered pursuant to Section 2.2.22 (and the failure to comply with any such covenants shall
not constitute a Default or Event of Default with respect to such Series under Section 6.1) and the occurrence of any event specified
in a supplemental indenture for such Series of Securities or a Board Resolution or an Officer’s Certificate delivered pursuant
to Section 2.2.18 and designated as an Event of Default shall not constitute a Default or Event of Default hereunder, with respect
to the Securities of such Series, provided that the following conditions shall have been satisfied:

 

(a)       With
reference to this Section 8.4, the Company has deposited or caused to be irrevocably deposited (except as provided in Section 8.2(c))
with the Trustee as trust funds in trust for the purpose of making the following payments specifically pledged as security for,
and dedicated solely to, the benefit of the Holders of such Securities (i) in the case of Securities of such Series denominated
in Dollars, cash in Dollars and/or U.S. Government Obligations, or (ii) in the case of Securities of such Series denominated in
a Foreign Currency (other than a composite currency), money and/or Foreign Government Obligations, which through the payment of
interest and principal in respect thereof in accordance with their terms, will provide (and without reinvestment and assuming no
tax liability will be imposed on such Trustee), not later than one day before the due date of any payment of money, an amount in
cash, sufficient, in the opinion of a nationally recognized firm of independent certified public accountants or investment bank
expressed in a written certification thereof delivered to the Trustee, to pay and discharge each installment of principal of and
interest, if any, on and any mandatory sinking fund payments in respect of the Securities of such Series on the dates such installments
of interest or principal and such sinking fund payments are due;

 

(b)           Such
deposit will not result in a breach or violation of, or constitute a default under, this Indenture or any other agreement or instrument
to which the Company is a party or by which it is bound;

 

(c)            No
Default or Event of Default with respect to the Securities of such Series shall have occurred and be continuing on the date of
such deposit;

 

(d)           The
Company shall have delivered to the Trustee an Opinion of Counsel to the effect that Holders of the Securities of such Series will
not recognize income, gain or loss for United States Federal income tax purposes as a result of such deposit and covenant defeasance
and will be subject to United States Federal income tax on the same amounts, in the same manner and at the same times as would
have been the case if such deposit and covenant defeasance had not occurred;

 

    	 	27	 

     

    

  

(e)            The
Company shall have delivered to the Trustee an Officer’s Certificate stating the deposit was not made by the Company with
the intent of defeating, hindering, delaying or defrauding any other creditors of the Company; and

 

(f)            The
Company shall have delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the covenant defeasance contemplated by this Section have been complied with.

 

Section 8.5.           Repayment
to Company.

 

Subject to applicable
abandoned property law, the Trustee and the Paying Agent shall pay to the Company upon request any money held by them for the payment
of principal and interest that remains unclaimed for two years. After that, Securityholders entitled to the money must look to
the Company for payment as general creditors unless an applicable abandoned property law designates another person.

 

Section 8.6.           Reinstatement.

 

If the Trustee or the
Paying Agent is unable to apply any money deposited with respect to Securities of any Series in accordance with Section 8.1 by
reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining
or otherwise prohibiting such application, the obligations of the Company under this Indenture with respect to the Securities of
such Series and under the Securities of such Series shall be revived and reinstated as though no deposit had occurred pursuant
to Section 8.1 until such time as the Trustee or the Paying Agent is permitted to apply all such money in accordance with Section
8.1; provided, however, that if the Company has made any payment of principal of or interest on or any Additional
Amounts with respect to any Securities because of the reinstatement of its obligations, the Company shall be subrogated to the
rights of the Holders of such Securities to receive such payment from the money or U.S. Government Obligations held by the Trustee
or Paying Agent.

 

Article
IX.

AMENDMENTS
AND WAIVERS

 

Section 9.1.            Without
Consent of Holders.

 

The Company and the Trustee
may amend or supplement this Indenture or the Securities of one or more Series without the consent of any Securityholder:

 

(a)       to
cure any ambiguity, defect or inconsistency;

 

(b)       to
comply with Article V;

 

(c)       to
provide for uncertificated Securities in addition to or in place of certificated Securities;

 

(d)       to
make any change that does not adversely affect the rights of any Securityholder in any material respect;

 

(e)       to
provide for the issuance of and establish the form and terms and conditions of Securities of any Series as permitted by this Indenture;

 

(f)       to
evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Securities of one or
more Series and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate
the administration of the trusts hereunder by more than one Trustee; or

 

(g)       to
comply with requirements of the SEC in order to effect or maintain the qualification of this Indenture under the TIA.

 

    	 	28	 

     

    

  

Section 9.2.           With
Consent of Holders.

 

The Company and the Trustee
may enter into a supplemental indenture with the written consent of the Holders of at least a majority in principal amount of the
outstanding Securities of each Series affected by such supplemental indenture (including consents obtained in connection with a
tender offer or exchange offer for the Securities of such Series), for the purpose of adding any provisions to or changing in any
manner or eliminating any of the provisions of this Indenture or of any supplemental indenture or of modifying in any manner the
rights of the Securityholders of each such Series. Except as provided in Section 6.13, the Holders of at least a majority in principal
amount of the outstanding Securities of any Series by notice to the Trustee (including consents obtained in connection with a tender
offer or exchange offer for the Securities of such Series) may waive compliance by the Company with any provision of this Indenture
or the Securities with respect to such Series.

 

It shall not be necessary
for the consent of the Holders of Securities under this Section 9.2 to approve the particular form of any proposed supplemental
indenture or waiver, but it shall be sufficient if such consent approves the substance thereof. After a supplemental indenture
or waiver under this section becomes effective, the Company shall send to the Holders of Securities affected thereby, a notice
briefly describing the supplemental indenture or waiver. Any failure by the Company to send such notice, or any defect therein,
shall not, however, in any way impair or affect the validity of any such supplemental indenture or waiver.

 

Section 9.3.          Limitations.

 

Without the consent of
each Securityholder affected, an amendment or waiver may not:

 

(a)       reduce
the principal amount of Securities whose Holders must consent to an amendment, supplement or waiver;

 

(b)       reduce
the rate of or extend the time for payment of interest (including default interest) on any Security;

 

(c)       reduce
the principal or change the Stated Maturity of any Security or reduce the amount of, or postpone the date fixed for, the payment
of any sinking fund or analogous obligation;

 

(d)       reduce
the principal amount of Discount Securities payable upon acceleration of the maturity thereof;

 

(e)       waive
a Default or Event of Default in the payment of the principal of or interest, if any, on any Security (except a rescission of acceleration
of the Securities of any Series by the Holders of at least a majority in principal amount of the outstanding Securities of such
Series and a waiver of the payment default that resulted from such acceleration);

 

(f)       make
the principal of or interest, if any, on any Security payable in any currency other than that stated in the Security;

 

(g)       make
any change in Sections 6.8, 6.13 or 9.3 (this sentence); or

 

(h)       waive
a redemption payment with respect to any Security, provided that such redemption is made at the Company’s option.

 

Section 9.4.           Compliance
with U.S. Trust Indenture Act.

 

Every amendment to this
Indenture or the Securities of one or more Series shall be set forth in a supplemental indenture hereto that complies with the
TIA as then in effect.

 

    	 	29	 

     

    

  

Section 9.5.           Revocation
and Effect of Consents.

 

Until an amendment is
set forth in a supplemental indenture or a waiver becomes effective, a consent to it by a Holder of a Security is a continuing
consent by the Holder and every subsequent Holder of a Security or portion of a Security that evidences the same debt as the consenting
Holder’s Security, even if notation of the consent is not made on any Security. However, any such Holder or subsequent Holder
may revoke the consent as to his Security or portion of a Security if the Trustee receives the notice of revocation before the
date of the supplemental indenture or the date the waiver becomes effective.

 

Any amendment or waiver
once effective shall bind every Securityholder of each Series affected by such amendment or waiver unless it is of the type described
in any of clauses (a) through (h) of Section 9.3. In that case, the amendment or waiver shall bind each Holder of a Security who
has consented to it and every subsequent Holder of a Security or portion of a Security that evidences the same debt as the consenting
Holder’s Security.

 

The Company may, but shall not be obligated
to, fix a record date for the purpose of determining the Holders entitled to give their consent or take any other action described
above or required or permitted to be taken pursuant to this Indenture. If a record date is fixed, then notwithstanding the second
immediately preceding paragraph, those persons who were Holders at such record date (or their duly designated proxies), and only
those persons, shall be entitled to give such consent or to revoke any consent previously given or take any such action, whether
or not such persons continue to be Holders after such record date. No such consent shall be valid or effective for more than 120
days after such record date.

 

Section 9.6.          Notation
on or Exchange of Securities.

 

The Company or the Trustee
may place an appropriate notation about an amendment or waiver on any Security of any Series thereafter authenticated. The Company
in exchange for Securities of that Series may issue and the Trustee shall authenticate upon request new Securities of that Series
that reflect the amendment or waiver.

 

Section 9.7.           Trustee
Protected.

 

In executing, or accepting
the additional trusts created by, any supplemental indenture permitted by this Article or the modifications thereby of the trusts
created by this Indenture, the Trustee shall be entitled to receive, and (subject to Section 7.1) shall be fully protected in relying
upon, an Officer’s Certificate or an Opinion of Counsel or both stating that the execution of such supplemental indenture
is authorized or permitted by the Indenture and otherwise complying with Section 10.4. The Trustee shall sign all supplemental
indentures upon delivery of such an Officer’s Certificate or Opinion of Counsel or both, except that the Trustee need not
sign any supplemental indenture that adversely affects its rights.

 

Article
X.

MISCELLANEOUS

 

Section 10.1.          U.S.
Trust Indenture Act Controls.

 

If any provision of this
Indenture limits, qualifies, or conflicts with another provision which is required or deemed to be included in this Indenture by
the TIA, such required or deemed provision shall control.

    	 	30	 

     

    

  

Section 10.2.          Notices.

 

Any notice or communication
by the Company or the Trustee to the other, or by a Holder to the Company or the Trustee, is duly given if in writing and delivered
in person or mailed by first-class mail or email:

 

if to the Company:

Waste Connections, Inc.

3 Waterway Square Place, Suite
110

The Woodlands, TX 77380

Attention: Patrick J. Shea, Senior
Vice President, General Counsel and Secretary

Telephone: (832) 442-2200

 

with a copy to:

Latham & Watkins
LLP

811 Main Street, Suite
3700

Houston, Texas 77002

Attention: Debbie Yee

Telephone: (713) 546-7429

 

-and-

 

Bennett Jones LLP

4500 Bankers Hall East

855 – 2 Street SW

Calgary, AB T2P 4K7

Attention: Harinder Basra

Telephone: (403) 298-4494

Facsimile: (403) 265-7219

 

if to the Trustee:

U.S. Bank National Association

Corporate Trust Services

633 West Fifth Street, 24th Floor

Los Angeles, CA 90071

Attention: Paula Oswald (Waste Connections)

Telephone: (213) 615-6043

Facsimile: (213) 615-6197

 

The Company or the Trustee
by notice to the other may designate additional or different addresses for subsequent notices or communications.

 

Any notice or communication
to a Securityholder shall be sent electronically or by first-class mail to his address shown on the register kept by the Registrar.
Failure to send a notice or communication to a Securityholder of any Series or any defect in it shall not affect its sufficiency
with respect to other Securityholders of that or any other Series.

 

If a notice or communication
is sent in the manner provided above, within the time prescribed, it is duly given, whether or not the Securityholder receives
it.

 

If the Company sends
a notice or communication to Securityholders, it shall send a copy to the Trustee and each Agent at the same time.

 

Notwithstanding any other
provision of this Indenture or any Security, where this Indenture or any Security provides for notice of any event (including any
notice of redemption) to a Holder of a Global Security (whether by mail or otherwise), such notice shall be sufficiently given
to the Depositary for such Security (or its designee) pursuant to the customary procedures of such Depositary.

 

Section 10.3.          Communication
by Holders with Other Holders.

 

Securityholders of any
Series may communicate pursuant to TIA § 312(b) with other Securityholders of that Series or any other Series with respect
to their rights under this Indenture or the Securities of that Series or all Series. The Company, the Trustee, the Registrar and
anyone else shall have the protection of TIA § 312(c).

    	 	31	 

     

    

  

Section 10.4.          Certificate
and Opinion as to Conditions Precedent.

 

Upon any request or application
by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the Trustee:

 

(a)       an
Officer’s Certificate stating that, in the opinion of the signers, all conditions precedent and covenants, if any, provided
for in this Indenture relating to the proposed action have been complied with; and

 

(b)       an
Opinion of Counsel stating that, in the opinion of such counsel, all such conditions precedent and covenants have been complied
with.

 

Section 10.5.          Statements
Required in Certificate or Opinion.

 

Each certificate or opinion
with respect to compliance with a condition or covenant provided for in this Indenture (other than a certificate provided pursuant
to TIA § 314(a)(4)) shall comply with the provisions of TIA § 314(e) and shall include:

 

(a)       a
statement that the person making such certificate or opinion has read such covenant or condition;

 

(b)       a
brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained
in such certificate or opinion are based;

 

(c)       (c)    a
statement that, in the opinion of such person, he has made such examination or investigation as is necessary to enable him to express
an informed opinion as to whether or not such covenant or condition has been complied with; and

 

(d)       a
statement as to whether or not, in the opinion of such person, such condition or covenant has been complied with.

 

Section 10.6.          Rules
by Trustee and Agents.

 

The Trustee may make
reasonable rules for action by or a meeting of Securityholders of one or more Series. Any Agent may make reasonable rules and set
reasonable requirements for its functions.

 

Section 10.7.          Payment
Date Not a Business Day.

 

Unless otherwise provided
by Board Resolution, Officer’s Certificate or supplemental indenture hereto for a particular Series, if a payment date is
not a Business Day at a place of payment, payment may be made at that place on the next succeeding day that is a Business Day,
and no interest shall accrue for the intervening period.

 

Section 10.8.          No
Recourse Against Others.

 

A director, officer,
employee or shareholder (past or present), as such, of the Company shall not have any liability for any obligations of the Company
under the Securities or the Indenture or for any claim based on, in respect of or by reason of such obligations or their creation.
Each Securityholder by accepting a Security waives and releases all such liability. The waiver and release are part of the consideration
for the issue of the Securities.

 

Section 10.9.          Counterparts.

 

This Indenture may be
executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed shall
be deemed to be an original and all of which taken together shall constitute one and the same agreement. The exchange of copies
of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of
this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties
hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

 

    	 	32	 

     

    

  

Section 10.10.          Governing
Laws.

 

THIS INDENTURE AND
THE SECURITIES, INCLUDING ANY CLAIM OR CONTROVERSY ARISING OUT OF OR RELATING TO THE INDENTURE OR THE SECURITIES, SHALL BE GOVERNED
BY THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO CONFLICT OF LAW PRINCIPLES THAT WOULD RESULT IN THE APPLICATION OF ANY LAW
OTHER THAN THE LAW OF THE STATE OF NEW YORK.

 

Section 10.11.          No
Adverse Interpretation of Other Agreements.

 

This Indenture may not
be used to interpret another indenture, loan or debt agreement of the Company or a Subsidiary of the Company. Any such indenture,
loan or debt agreement may not be used to interpret this Indenture.

 

Section 10.12.          Successors.

 

All agreements of the
Company in this Indenture and the Securities shall bind its successor. All agreements of the Trustee in this Indenture shall bind
its successor.

 

Section 10.13.          Severability.

 

In case any provision
in this Indenture or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

 

Section 10.14.          Table
of Contents, Headings, Etc.

 

The Table of Contents,
Cross Reference Table, and headings of the Articles and Sections of this Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof.

 

Section 10.15.          Securities
in a Foreign Currency.

 

Unless otherwise specified
in a Board Resolution, a supplemental indenture hereto or an Officer’s Certificate delivered pursuant to Section 2.2 of this
Indenture with respect to a particular Series of Securities, whenever for purposes of this Indenture any action may be taken by
the Holders of a specified percentage in aggregate principal amount of Securities of all Series or all Series affected by a particular
action at the time outstanding and, at such time, there are outstanding Securities of any Series which are denominated in more
than one currency, then the principal amount of Securities of such Series which shall be deemed to be outstanding for the purpose
of taking such action shall be determined by converting any such other currency into a currency that is designated upon issuance
of any particular Series of Securities. Unless otherwise specified in a Board Resolution, a supplemental indenture hereto or an
Officer’s Certificate delivered pursuant to Section 2.2 of this Indenture with respect to a particular Series of Securities,
such conversion shall be made by the Company at the spot rate for the purchase of the designated currency as published in The Financial
Times in the “Currency Rates” section (of, if The Financial Times is no longer published, or if such information is
no longer available in The Financial Times, such source as may be selected in good faith by the Company) on any date of determination.
The provisions of this paragraph shall apply in determining the equivalent principal amount in respect of Securities of a Series
denominated in currency other than Dollars in connection with any action taken by Holders of Securities pursuant to the terms of
this Indenture.

 

All decisions and determinations
provided for in the preceding paragraph shall, in the absence of manifest error, to the extent permitted by law, be conclusive
for all purposes and irrevocably binding upon the Trustee and all Holders.

 

    	 	33	 

     

    

 

Section 10.16.          Judgment
Currency.

 

The Company agrees, to
the fullest extent that it may effectively do so under applicable law, that (a) if for the purpose of obtaining judgment in any
court it is necessary to convert the sum due in respect of the principal of or interest or other amount on the Securities of any
Series (the “Required Currency”) into a currency in which a judgment will be rendered (the “Judgment
Currency”), the rate of exchange used shall be the rate at which in accordance with normal banking procedures the Trustee
could purchase in The City of New York the Required Currency with the Judgment Currency on the day on which final unappealable
judgment is entered, unless such day is not a New York Banking Day, then the rate of exchange used shall be the rate at which in
accordance with normal banking procedures the Trustee could purchase in The City of New York the Required Currency with the Judgment
Currency on the New York Banking Day preceding the day on which final unappealable judgment is entered and (b) its obligations
under this Indenture to make payments in the Required Currency (i) shall not be discharged or satisfied by any tender, any recovery
pursuant to any judgment (whether or not entered in accordance with subsection (a)), in any currency other than the Required Currency,
except to the extent that such tender or recovery shall result in the actual receipt, by the payee, of the full amount of the Required
Currency expressed to be payable in respect of such payments, (ii) shall be enforceable as an alternative or additional cause of
action for the purpose of recovering in the Required Currency the amount, if any, by which such actual receipt shall fall short
of the full amount of the Required Currency so expressed to be payable, and (iii) shall not be affected by judgment being obtained
for any other sum due under this Indenture. For purposes of the foregoing, “New York Banking Day” means any
day except a Saturday, Sunday or a legal holiday in The City of New York on which banking institutions are authorized or required
by law, regulation or executive order to close.

 

Section 10.17.          Force
Majeure.

 

In no event shall the
Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused
by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts
of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or
malfunctions of utilities, communications or computer (software and hardware) services, it being understood that the Trustee shall
use reasonable best efforts which are consistent with accepted practices in the banking industry to resume performance as soon
as practicable under the circumstances.

 

Section 10.18.          USA
PATRIOT Act.

 

The parties hereto acknowledge
that, in accordance with Section 326 of the USA PATRIOT Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)) (as
amended, modified or supplemented from time to time, the “USA Patriot Act”), the Trustee, like all financial institutions,
is required to obtain, verify, and record information that identifies each person or legal entity that opens an account. The parties
to this Indenture agree that they will provide the Trustee with such information as the Trustee may reasonably request in order
for the Trustee to satisfy the requirements of the USA PATRIOT Act.

 

Article
XI.

SINKING FUNDS

 

Section 11.1.          Applicability
of Article.

 

The provisions of this
Article shall be applicable to any sinking fund for the retirement of the Securities of a Series if so provided by the terms of
such Securities pursuant to Section 2.2 and except as otherwise permitted or required by any form of Security of such Series issued
pursuant to this Indenture.

 

The minimum amount of
any sinking fund payment provided for by the terms of the Securities of any Series is herein referred to as a “mandatory
sinking fund payment” and any other amount provided for by the terms of Securities of such Series is herein referred
to as an “optional sinking fund payment.” If provided for by the terms of Securities of any Series, the cash
amount of any sinking fund payment may be subject to reduction as provided in Section 11.2. Each sinking fund payment shall be
applied to the redemption of Securities of any Series as provided for by the terms of the Securities of such Series.

 

    	 	34	 

     

    

  

Section 11.2.          Satisfaction
of Sinking Fund Payments with Securities.

 

The Company may, in satisfaction
of all or any part of any sinking fund payment with respect to the Securities of any Series to be made pursuant to the terms of
such Securities (1) deliver outstanding Securities of such Series to which such sinking fund payment is applicable (other than
any of such Securities previously called for mandatory sinking fund redemption) and (2) apply as credit Securities of such Series
to which such sinking fund payment is applicable and which have been repurchased by the Company or redeemed either at the election
of the Company pursuant to the terms of such Series of Securities (except pursuant to any mandatory sinking fund) or through the
application of permitted optional sinking fund payments or other optional redemptions pursuant to the terms of such Securities,
provided that such Securities have not been previously so credited. Such Securities shall be received by the Trustee, together
with an Officer’s Certificate with respect thereto, not later than 15 days prior to the date on which the Trustee begins
the process of selecting Securities for redemption, and shall be credited for such purpose by the Trustee at the price specified
in such Securities for redemption through operation of the sinking fund and the amount of such sinking fund payment shall be reduced
accordingly. If as a result of the delivery or credit of Securities in lieu of cash payments pursuant to this Section 11.2, the
principal amount of Securities of such Series to be redeemed in order to exhaust the aforesaid cash payment shall be less than
$100,000, the Trustee need not call Securities of such Series for redemption, except upon receipt of a Company Order that such
action be taken, and such cash payment shall be held by the Trustee or a Paying Agent and applied to the next succeeding sinking
fund payment, provided, however, that the Trustee or such Paying Agent shall from time to time upon receipt of a
Company Order pay over and deliver to the Company any cash payment so being held by the Trustee or such Paying Agent upon delivery
by the Company to the Trustee of Securities of that Series purchased by the Company having an unpaid principal amount equal to
the cash payment required to be released to the Company.

 

Section 11.3.          Redemption
of Securities for Sinking Fund.

 

Not less than 45 days
(unless otherwise indicated in the Board Resolution, supplemental indenture hereto or Officer’s Certificate in respect of
a particular Series of Securities) prior to each sinking fund payment date for any Series of Securities, the Company will deliver
to the Trustee an Officer’s Certificate specifying the amount of the next ensuing mandatory sinking fund payment for that
Series pursuant to the terms of that Series, the portion thereof, if any, which is to be satisfied by payment of cash and the portion
thereof, if any, which is to be satisfied by delivering and crediting of Securities of that Series pursuant to Section 11.2, and
the optional amount, if any, to be added in cash to the next ensuing mandatory sinking fund payment, and the Company shall thereupon
be obligated to pay the amount therein specified. Not less than 30 days (unless otherwise indicated in the Board Resolution, Officer’s
Certificate or supplemental indenture in respect of a particular Series of Securities) before each such sinking fund payment date
the Trustee shall select the Securities to be redeemed upon such sinking fund payment date in the manner specified in Section 3.2
and cause notice of the redemption thereof to be given in the name of and at the expense of the Company in the manner provided
in Section 3.3. Such notice having been duly given, the redemption of such Securities shall be made upon the terms and in the manner
stated in Sections 3.4, 3.5 and 3.6.

 

    	 	35	 

     

    

 

IN WITNESS WHEREOF, the
parties hereto have caused this Indenture to be duly executed as of the day and year first above written.

 

	 	WASTE CONNECTIONS, INC.
	 	 	 
	 	By:	/s/ Mary Anne Whitney
	 	 	Name: Mary Anne Whitney
	 	 	Its: Senior Vice President and Chief Financial Officer

 

	 	U.S. BANK NATIONAL ASSOCIATION, as Trustee

 

	 	By:	/s/ Paula Oswald
	 	 	Name: Paula Oswald
	 	 	Its: Vice President

 

    	 	36Exhibit 4.2

 

EXECUTION VERSION

WASTE CONNECTIONS, INC.

 

as Issuer,

 

to

 

U.S. BANK NATIONAL ASSOCIATION

 

as Trustee

 

 

 

FIRST SUPPLEMENTAL INDENTURE,

 

Dated as of November 16, 2018,

 

to Indenture dated as of November 16, 2018

 

 

 

$500,000,000

 

4.250% Senior Notes due 2028

 

 

 

     

     

    

TABLE
OF CONTENTS

 

	 	Page
	 	 
	ARTICLE ONE SECURITY FORMS	1
	 	 
	SECTION 1.1.   Forms of Notes	1
	 	 
	SECTION 1.2.   Price	2
	 	 
	SECTION 1.3.   Denominations	2
	 	 
	SECTION 1.4.   Payment; Interest	2
	 	 
	ARTICLE TWO AMENDMENTS TO BASE INDENTURE PROVISIONS	2
	 	 
	SECTION 2.1.   Generally	2
	 	 
	SECTION 2.2.   Additional Definitions	2
	 	 
	SECTION 2.3.   Replaced Definitions	7
	 	 
	SECTION 2.4.   Issuable in Series	7
	 	 
	SECTION 2.5.   Book-Entry Provisions for Global Securities	8
	 	 
	SECTION 2.6.   CUSIP Numbers	8
	 	 
	SECTION 2.7.   Selection of Securities to be Redeemed	8
	 	 
	SECTION 2.8.   Notice of Redemption	9
	 	 
	SECTION 2.9.   Optional Redemption	9
	 	 
	SECTION 2.10.   Limitation on Liens	10
	 	 
	SECTION 2.11.   Limitations on Sale and Leaseback Transactions	12
	 	 
	SECTION 2.12.   Withholding Taxes and Other Taxes	13
	 	 
	SECTION 2.13.   When the Company May Merge, Amalgamate, Etc.	16
	 	 
	SECTION 2.14.   Covenant Defeasance	17
	 	 
	SECTION 2.15.   Change of Control Triggering Event	17
	 	 
	SECTION 2.16.   Consent to Jurisdiction and Service	19
	 	 
	ARTICLE THREE MISCELLANEOUS	20
	 	 
	SECTION 3.1.   Construction	20
	 	 
	SECTION 3.2.   Conflicts	20
	 	 
	SECTION 3.3.   Successors and Assigns	20
	 	 
	SECTION 3.4.   Severability	20
	 	 
	SECTION 3.5.   Benefits of the Indenture	20
	 	 
	SECTION 3.6.   Governing Law	20
	 	 
	SECTION 3.7.   Defined Terms	21
	 	 
	SECTION 3.8.   Counterparts	21
	 	 
	SECTION 3.9.   Concerning the Trustee	21

    i 

     

    

 

FIRST SUPPLEMENTAL
INDENTURE, dated as of November 16, 2018 (the “First Supplemental Indenture”), between WASTE CONNECTIONS, INC.,
a corporation existing under the laws of Ontario, Canada (the “Company”), and U.S. BANK NATIONAL ASSOCIATION,
a U.S. national banking association, as trustee under the Base Indenture referred to below (the “Trustee”).

 

WHEREAS, the Company
entered into an Indenture with the Trustee, dated as of November 16, 2018 (the “Base Indenture” and, as amended
and supplemented by this First Supplemental Indenture, the “Indenture”), providing for the issuance of senior
debt securities, unlimited as to principal amount, to bear such rates of interest, to mature at such time or times, to be issued
in one or more series and to have such other provisions as authorized by or pursuant to the authority granted in one or more resolutions
of the Board of Directors; and

 

WHEREAS, the Company
proposes to issue $500,000,000 aggregate principal amount of its 4.250% Senior Notes due 2028 (the “Notes,”
and all references to Securities in the Base Indenture shall be deemed to refer also to the Notes unless the context otherwise
provides); and

 

WHEREAS, Section 9.1
of the Base Indenture provides that the Company and the Trustee may enter into a supplemental indenture, to among other things,
establish the form or terms of Notes as permitted by the Base Indenture without the consent of any Securityholder; and

 

WHEREAS, the entry
into this First Supplemental Indenture by the parties hereto is in all respects authorized by the provisions of the Base Indenture;
and

 

WHEREAS, all things
necessary have been done to make this First Supplemental Indenture, when executed and delivered by the Company, the legal, valid
and binding agreement of the Company, in accordance with its terms; and

 

WHEREAS, all things
necessary have been done to make the Notes, when executed and delivered by the Company and authenticated by the Trustee as provided
for in the Indenture, the legal, valid and binding agreements of the Company, in accordance with their terms; and

 

NOW, THEREFORE, THIS
FIRST SUPPLEMENTAL INDENTURE WITNESSETH, the parties hereto mutually covenant and agree as follows:

 

ARTICLE
ONE

 

SECURITY FORMS

 

SECTION 1.1.  Forms
of Notes. The Notes and any Additional Notes shall be in substantially the form of Exhibit A hereto and may have
such letters, numbers or other marks of identification or designation and such legends or endorsements placed thereon as the Company
may deem appropriate and as are not inconsistent with the provisions of the Indenture, or as may be required to comply with any
law or with any rule or regulation made pursuant thereto or with any rule or regulation of any exchange on which the Notes may
be listed, or to conform to usage. The terms and provisions set forth in the Notes shall constitute, and are hereby made a part
of the Indenture and, to the extent applicable, the Company and the Trustee, by their execution and delivery of the Base Indenture
and this First Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby.

 

     

     

    

 

SECTION 1.2.  Price.
The Notes (excluding any Additional Notes) shall be issued at 99.852% of the aggregate principal amount of $500,000,000.

 

SECTION 1.3.  Denominations.
The Notes shall be issued in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof.

 

SECTION 1.4.  Payment;
Interest. The principal amount of each Note shall be payable on December 1, 2028. Each Note shall bear interest from and including
the date of issuance, or the most recent Interest Payment Date (as defined below), at the fixed rate of 4.250% per annum. The
dates on which interest on the Notes shall be payable shall be June 1 and December 1 of each year, commencing June 1, 2019 (the
“Interest Payment Dates”). The regular record date for interest payable on the Notes on any Interest Payment Date
shall be May 15 and November 15, as the case may be, immediately preceding such Interest Payment Date.

 

ARTICLE
TWO

 

AMENDMENTS TO BASE INDENTURE PROVISIONS

 

SECTION 2.1.  Generally.
The Base Indenture is hereby amended or amended and restated, in each case solely with respect to the Notes, as indicated in the
following sections.

 

SECTION 2.2.  Additional
Definitions. Section 1.1 of the Base Indenture is hereby amended by adding the following definitions in correct alphabetical
order:

 

“Additional
Notes” shall have the meaning set forth in Section 2.1.

 

“Agent Members”
shall have the meaning set forth in Section 2.14.7(a).

 

“Applicable
Procedures” means, with respect to any transfer or transaction involving a Global Security or beneficial interest therein,
the rules and procedures of the Depositary for such Security to the extent applicable to such transaction and as in effect at the
time of such transfer or transaction.

 

“Attributable
Debt” means the present value of the rental payments during the remaining term of the lease included in the Sale and
Leaseback Transaction. To determine that present value, the Company uses a discount rate equal to the lease rate of the Sale and
Leaseback Transaction or, if the lease rate is not known to the Company, the weighted average interest rate of all series of securities
outstanding at the time under the indenture compounded semi-annually. For these purposes, rental payments do not include any amounts
required to be paid for taxes, maintenance, repairs, insurance, assessments, utilities, operating and labor costs and other items
that do not constitute payments for property rights. In the case of any lease that the lessee may terminate by paying a penalty,
if the net amount (including payment of the penalty) would be reduced if the lessee terminated the lease on the first date that
it could be terminated, then this lower net amount will be used.

 

    	 	2	 

     

    

 

“Change of
Control” means the occurrence of any of the following after the date of issuance of the Notes:

 

(a)       the
direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one
or a series of related transactions, of all or substantially all of the assets of the Company and its Subsidiaries taken as a whole
to any “person” or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act) other than
to the Company or one of its Subsidiaries;

 

(b)       the
consummation of any transaction (including any merger, amalgamation or consolidation) the result of which is that any “person”
or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act, it being agreed that an employee of the
Company or any of its Subsidiaries for whom shares are held under an employee stock ownership, employee retirement, employee savings
or similar plan and whose shares are voted in accordance with the instructions of such employee shall not be a member of a “group”
(as that term is used in Section 13(d)(3) of the Exchange Act) solely because such employee’s shares are held by a trustee
under said plan) becomes the “beneficial owner” (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly
or indirectly, of Voting Stock representing more than 50% of the voting power of the Company’s outstanding Voting Stock;

 

(c)       the
Company consolidates with, or merges or amalgamates with or into, any person, or any person consolidates with, amalgamates with,
or merges with or into, the Company, in any such event pursuant to a transaction in which any of the Company’s outstanding
Voting Stock or Voting Stock of such other person is converted into or exchanged for cash, securities or other property, other
than any such transaction where the Company’s Voting Stock outstanding immediately prior to such transaction constitutes,
or is converted into or exchanged for, Voting Stock representing more than 50% of the voting power of the Voting Stock of the surviving
or resulting person immediately after giving effect to such transaction;

 

(d)       during
any period of twelve (12) consecutive calendar months, individuals who were members of the Board of Directors on the first day
of such period cease to constitute a majority of the Board of Directors unless such new directors were approved by a majority of
the directors who were directors on the first day of such period; or

 

(e)       the
adoption of a plan relating to the Company’s liquidation or dissolution.

 

“Change of
Control Offer” shall have the meaning set forth in Section 12.1(a).

 

“Change of
Control Payment” shall have the meaning set forth in Section 12.1(a).

 

“Change of
Control Payment Date” shall have the meaning set forth in Section 12.1(b)(iv).

 

“Change of
Control Repurchase Notice” shall have the meaning set forth in Section 12.1(c)(i).

 

    	 	3	 

     

    

 

“Change of
Control Triggering Event” means the Notes cease to be rated Investment Grade by at least two of the three Rating Agencies
on any date during the Trigger Period. If a Rating Agency is not providing a rating for the Notes at the commencement of any Trigger
Period, the Notes will be deemed to have ceased to be rated Investment Grade by such Rating Agency during that Trigger Period.
Notwithstanding the foregoing, no Change of Control Triggering Event will be deemed to have occurred in connection with any particular
Change of Control unless and until such Change of Control has actually been consummated.

 

“Code”
means the United States Internal Revenue Code of 1986, as amended.

 

“Comparable
Treasury Issue” means the U.S. Treasury security selected by an Independent Investment Banker as having a maturity comparable
to the remaining term of the Notes to be redeemed (assuming that the Notes matured on the Par Call Date) that would be utilized,
at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities
of comparable maturity to the remaining term of the Notes (assuming that the Notes matured on the Par Call Date).

 

“Comparable
Treasury Price” means, with respect to any redemption date: (1) the average of the Reference Treasury Dealer Quotations
for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations; or (2) if the Independent
Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations.

 

“Consolidated
Tangible Assets” means the total amount of assets of the Company and its consolidated subsidiaries less the value of
all intangible assets, calculated based on the Company’s most recent balance sheet filed with the SEC.

 

“Credit Agreement”
means that certain Revolving Credit and Term Loan Agreement (as amended, restated, amended and restated, supplemented or otherwise
modified from time to time), among the Company, Bank of America, N.A., acting through its Canada Branch, as global agent, the swing
line lender and letter of credit issuer, Bank of America, N.A., as the U.S. Agent and a letter of credit issuer, the lenders and
any other financial institutions from time to time party thereto.

 

“Excluded
Holder” shall have the meaning set forth in Section 4.8(b).

 

“Fitch”
means Fitch Ratings Inc. and any successor to its rating agency business.

 

“GAAP”
means accounting principles generally accepted in the United States of America set forth in the opinions and pronouncements of
the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant
segment of the accounting profession, which are in effect as of the date of determination. Without limiting the foregoing, leases
shall continue to be classified and accounted for on a basis consistent with that reflected in the Company’s audited financial
statements as of and for the year ended December 31, 2017 for all purposes of the Indenture notwithstanding any change in GAAP
relating thereto unless the Company otherwise agrees to a change with the lenders under the Credit Agreement in accordance with
the terms thereof.

 

    	 	4	 

     

    

 

“Indebtedness”
means (a) all obligations for borrowed money or on which interest charges are customarily paid, all as shown on the balance
sheet of the indebted party, (b) all items that would be included as liabilities on a balance sheet in accordance with GAAP
as of the date at which Indebtedness is to be determined, and (c) all indebtedness secured by a security interest in property
owned or being purchased by the indebted party and all guarantees of Indebtedness.

 

“Independent
Investment Banker” means J.P. Morgan Securities LLC or Merrill Lynch, Pierce, Fenner & Smith Incorporated, as
selected by the Company, and their respective successors, or if each of such firms is unwilling or unable to select the Comparable
Treasury Issue, an independent investment banking institution of national standing appointed by the Company.

 

“Investment
Grade” means a rating of BBB– or better by Fitch (or its equivalent under any successor rating category of Fitch),
Baa3 or better by Moody’s (or its equivalent under any successor rating category of Moody’s) and a rating of BBB–
or better by S&P (or its equivalent under any successor rating category of S&P), and the equivalent investment grade credit
rating from any replacement rating agency or rating agencies selected by the Company under the circumstances permitting the Company
to select a replacement agency.

 

“Moody’s”
means Moody’s Investors Service, Inc. and any successor to its rating agency business.

 

“Par Call
Date” shall have the meaning set forth in Section 3.7(a).

 

“Primary Treasury
Dealer” means a primary U.S. Government securities dealer in New York City.

 

“Principal
Property” means any (i) waste processing, waste disposal or resource recovery plant or similar facility, together with
fixtures thereon and the land underlying such facility (including any improvements thereon) and (ii) the Company’s corporate
headquarters, together with fixtures thereon and the land underlying such building or buildings (including any improvements thereon),
in each case, located within the United States or Canada and owned by or leased to the Company or any Restricted Subsidiary except
(a) any such land, land improvements or fixtures (x) owned or leased jointly or in common with one or more persons other than the
Company and any Restricted Subsidiaries in which the Company’s and its Restricted Subsidiaries’ interest does not exceed
50%, or (y) which the Board of Directors determines is not material in importance to the Company’s total business or (b)
any portion of such land, land improvements or fixtures that the Board of Directors determines in good faith not to be of material
importance to the use or operation thereof.

 

“Rating Agency”
means each of Fitch, Moody’s and S&P; provided, that if any of Fitch, Moody’s or S&P ceases to rate
the Notes or fails to make a rating of the Notes publicly available for reasons outside the Company’s control, the Company
may appoint another “nationally recognized statistical rating organization” within the meaning of Section 3(a)(62)
under the Exchange Act as a replacement for such Rating Agency and the Company shall give notice of such appointment to the Trustee.

 

    	 	5	 

     

    

 

“Reference
Treasury Dealer” means: (1) each of J.P. Morgan Securities LLC and Merrill Lynch, Pierce, Fenner & Smith
Incorporated and their respective successors; provided, however, that if any of the foregoing shall cease to be a
Primary Treasury Dealer (a), the Company will substitute for such firm another Primary Treasury Dealer; and (2) up to four
additional Primary Treasury Dealers selected by the Independent Investment Banker after consultation with the Company.

 

“Reference
Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average,
as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in
each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker at 5:00 p.m., New York
City time, on the third business day preceding such redemption date.

 

“Relevant
Taxing Jurisdiction” shall have the meaning set forth in Section 4.8(a).

 

“Restricted
Subsidiary” means any Subsidiary of the Company (other than any Subsidiary of which the Company owns less than all of
the outstanding Voting Stock) (a) principally engaged in, or whose principal assets consist of property used by the Company
or any Restricted Subsidiary in, the storage, collection, transfer, interim processing, disposal or recycling of waste within the
United States or Canada or (b) which the Company designates as a Restricted Subsidiary in an Officer’s Certificate delivered
to the Trustee.

 

“Sale and
Leaseback Transaction” shall have the meaning set forth in Section 4.7.

 

“Security
Instrument” means any security agreement, chattel mortgage, assignment, financing or similar statement or notice, continuation
statement, other agreement or instrument, or amendment or supplement to any thereof, providing for, evidencing or perfecting any
Security Interest or lien.

 

“Security
Interest” means any interest in any real or personal property or fixture which secures payment or performance of an obligation
and shall include any mortgage, lien, encumbrance, charge or other security interest of any kind, whether arising under a Security
Instrument or as a matter of law, judicial process or otherwise.

 

“S&P”
means Standard & Poor’s Financial Services LLC, a division of S&P Global Inc., and any successor to its rating agency
business.

 

“Taxes”
shall have the meaning set forth in Section 4.8(a).

 

“Treasury
Rate” means, with respect to any redemption date: (1) the yield, under the heading that represents the average for
the immediately preceding week, appearing in the most recently published statistical release designated “H.15” or any
successor publication that is published weekly by the Board of Governors of the Federal Reserve System and that establishes yields
on actively traded U.S. Treasury securities adjusted to constant maturity under the caption “Treasury Constant Maturities,”
for the maturity corresponding to the Comparable Treasury Issue (if no maturity is within three months before or after the Par
Call Date, yields for the two published maturities most closely corresponding to the Comparable Treasury Issue will be determined
and the Treasury Rate will be interpolated or extrapolated from such yields on a straight line basis, rounding to the nearest month);
or (2) if such release (or any successor release) is not published during the week preceding the calculation date or does
not contain such yields, the rate per annum equal to the semiannual equivalent yield to maturity of the Comparable Treasury Issue,
calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable
Treasury Price for such redemption date. The Treasury Rate will be calculated on the third business day preceding the redemption
date.

 

    	 	6	 

     

    

 

“Trigger Period”
means the period commencing on the earlier of (1) the first public announcement by the Company of any Change of Control (or pending
Change of Control) and (2) such Change of Control, and ending 60 days following the consummation of such Change of Control (which
Trigger Period will be extended following consummation of a Change of Control for so long as any of the Rating Agencies has publicly
announced that it is considering a possible ratings change).

 

“Voting Stock”
of any person as of any date means the capital stock or share capital of such person that is at the time entitled to vote generally
in the election of the board of directors of such person.

 

SECTION 2.3.  Replaced
Definitions. Section 1.1 of the Base Indenture is hereby amended by replacing in whole the following definitions in lieu of
the corresponding existing definitions, so that in the event of a conflict with the definitions of terms in the Base Indenture,
the following definitions shall control:

 

“Additional
Amounts” shall have the meaning set forth in Section 4.8(a)(iii).

 

“Depositary”
means, with respect to the Notes, The Depository Trust Company (“DTC”), its nominees and successors, or another
person designated as Depositary by the Company, which must be a clearing agency registered under the Exchange Act.

 

SECTION 2.4.  Issuable
in Series. Section 2.1 of the Base Indenture shall be amended and restated in its entirety to read as follows:

 

“The
aggregate principal amount of Securities that may be authenticated and delivered under this Indenture is unlimited. The Securities
may be issued in one or more Series. Additional Notes of the same class and Series (the “Additional Notes”)
may be issued in one or more tranches from time to time, without notice to or the consent of the existing holders of the Notes.
All Securities of a Series shall be identical except as may be set forth or determined in the manner provided in a Board Resolution,
supplemental indenture or Officer’s Certificate detailing the adoption of the terms thereof pursuant to authority granted
under a Board Resolution. In the case of Securities of a Series to be issued from time to time, the Board Resolution, Officer’s
Certificate or supplemental indenture detailing the adoption of the terms thereof pursuant to authority granted under a Board Resolution
may provide for the method by which specified terms (such as interest rate, maturity date, record date or date from which interest
shall accrue) are to be determined. Securities may differ between Series in respect of any matters, provided that all Series of
Securities, including the Notes and Additional Notes, shall be equally and ratably entitled to the benefits of the Indenture.”

 

    	 	7	 

     

    

 

 

SECTION 2.5.  Book-Entry
Provisions for Global Securities. A new Section 2.14.7 shall be added after 2.14.6 in the Base Indenture, which shall read
as follows:

 

“Section 2.14.7
Book-Entry Provisions for Global Securities

 

(a)       Members
of, or participants in, the Depositary (“Agent Members”) shall have no rights under this Indenture with respect
to any Global Security held on their behalf by the Depositary, or the Trustee as its custodian, or under such Global Security,
and the Depositary may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner
of such Global Security for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the
Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization
furnished by the Depositary or shall impair, as between the Depositary and its Agent Members, the operation of customary practices
governing the exercise of the rights of a Holder of any Security.

 

(b)       The
Depositary or its nominee, as registered owner of a Global Security, shall be the Holder of such Global Security for all purposes
under this Indenture and the Securities, and owners of beneficial interests in a Global Security shall hold such interests pursuant
to the Applicable Procedures. Accordingly, any such owner’s beneficial interest in a Global Security will be shown only on,
and the transfer of such interest shall be effected only through, records maintained by the Depositary or its nominee or its Agent
Members.”

 

SECTION 2.6.  CUSIP
Numbers. Section 2.15 of the Base Indenture is amended by adding the following sentence at the end of the current provision:

 

“If
Additional Notes are not fungible with the Notes for U.S. federal income tax purposes, they shall be issued under a separate CUSIP
number from that under which the Notes are issued.”

 

SECTION 2.7.  Selection
of Securities to be Redeemed. Section 3.2 of the Base Indenture shall be amended and restated in its entirety to read as follows:

 

“If less than all the Notes are to be
redeemed, the Trustee shall select the Notes to be redeemed in any, by lot or in any other manner that the Trustee deems fair and
appropriate, including by lot or other method, unless otherwise required by law or applicable stock exchange requirements (as certified
by the Company to the Trustee), subject, in the case of Global Securities, to the applicable rules and procedures of the Depositary.
The Trustee shall make the selection from the Notes outstanding not previously called for redemption. The Trustee may select for
redemption portions of the principal of the Notes that have denominations greater than a principal amount of $2,000. Securities
of the Series and portions of them it selects shall be in amounts of $1,000 or whole multiples of $1,000 or, with respect to Securities
of any Series issuable in other denominations pursuant to Section 2.2.10, the minimum principal denomination for each Series and
the authorized integral multiples thereof. Provisions of this Indenture that apply to Securities of a Series called for redemption
also apply to portions of Securities of that Series called for redemption.”

 

    	 	8	 

     

    

 

SECTION 2.8.  Notice
of Redemption. The first paragraph of Section 3.3 of the Base Indenture shall be amended and restated in its entirety to read
as follows:

 

“At
least 15 days but not more than 60 days before a redemption date, the Company shall mail a notice of redemption by first-class
mail (or by electronic transmission or otherwise in accordance with the Applicable Procedures) to each Holder whose Securities
are to be redeemed, with a copy to the Trustee.”

 

SECTION 2.9.  Optional
Redemption. A new Section 3.7 shall be added after Section 3.6 of the Base Indenture, which shall read as follows:

 

“Section
3.7Optional Redemption.

 

(a)       The
Company may redeem the Notes, in whole or in part, at any time prior to September 1, 2028 (the “Par Call Date”)
at a redemption price equal to the greater of (i) 100% of the principal amount of the Notes to be redeemed and (ii) the sum of
the present values of the remaining scheduled payments of principal and interest (exclusive of interest accrued to the redemption
date) on the Notes to be redeemed (assuming that such Notes matured on the Par Call Date), discounted to the redemption date on
a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the applicable Treasury Rate, plus 20 basis
points, plus, in the case of each of clauses (i) and (ii), accrued and unpaid interest, if any, to, but excluding, the redemption
date.

 

(b)       If
the redemption date is after a record date and on or prior to a corresponding interest payment date, the interest will be paid
on the full amount of accrued and unpaid interest on the redemption date to the Holder of record on the record date.

 

(c)       On
or after the Par Call Date, the Notes will be redeemable, in whole or in part, at the Company’s option and at any time or
from time to time, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid
interest thereon, if any, to, but excluding, the redemption date.

 

(d)       The
Company is entitled to redeem the Notes, at its option, at any time as a whole but not in part, upon not less than 15 nor more
than 60 days’ prior notice, with a copy to the Trustee, to the registered address of each Holder (such notice to be provided
not more than 90 days before the next date on which the Company would be obligated to pay Additional Amounts), at a redemption
price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the redemption
date (subject to the right of Holders of Notes of record on the relevant record date to receive interest due on an interest payment
that is on or prior to the redemption date), in the event the Company becomes, or will become, obligated to pay, on the next date
on which any amount may be payable with respect to the Notes, any Additional Amounts as a result of (i) a change in, or amendment
to, the laws or regulations of any Relevant Taxing Jurisdiction or (ii) a change in any official position or the introduction of
an official position regarding the application or interpretation thereof (including a holding by a court of competent jurisdiction),
which is publicly announced and becomes effective on or after the issue date of the Notes and such Additional Amounts cannot (as certified
in an Officer’s Certificate to the Trustee) be avoided by the use of reasonable measures available to the Company. Notice
of the Company’s intent to redeem the Notes pursuant to this Section 3.7(d) shall not be effective until such time as it
delivers to the Trustee an (1) Officer’s Certificate stating that the Company is entitled to effect such redemption and setting
forth a statement of facts showing that the conditions precedent to such right of redemption have occurred and (2) opinion of independent
legal counsel stating that the Company is or will become obligated to pay Additional Amounts because of an amendment to or change
in law or regulation or position as set forth in this Section 3.7(d).

 

    	 	9	 

     

    

 

SECTION 2.10.  Limitation
on Liens. A new Section 4.6 shall be added after Section 4.5 in the Base Indenture, which shall read as follows:

 

“Section 4.6  Limitation
on Liens.

 

(a)       The
Company will not, and will not permit any of its Restricted Subsidiaries to, create, incur, assume or suffer to exist, directly
or indirectly, any Indebtedness secured by a Security Interest upon any Principal Property of the Company or of a Restricted Subsidiary,
whether owned as of the date of this Indenture or hereafter acquired, without making effective provision (and the Company hereby
covenants that in any such case it shall make or cause to be made effective provision) whereby the Notes then outstanding and any
other Indebtedness of the Company or any Restricted Subsidiary then entitled thereto shall be secured by such Security Interest
equally and ratably with (or prior to) any and all other Indebtedness of the Company or any Restricted Subsidiary thereby secured
for so long as any such other Indebtedness of the Company or any Restricted Subsidiary shall be so secured; provided, that
nothing in this Section 4.6 shall prevent, restrict or apply to Indebtedness secured by:

 

(i)       any
Security Interest upon property or assets existing at the time of the acquisition thereof, which Security Interest secures obligations
assumed by the Company or any Restricted Subsidiary;

 

(ii)       any
conditional sales agreement or other title retention agreement with respect to any property or assets acquired by the Company or
any Restricted Subsidiary;

 

(iii)      any
Security Interest existing on the property or assets or shares of stock of an entity at the time such entity is merged or amalgamated
with or into or consolidated with the Company or any Restricted Subsidiary or at the time of a sale, lease or other disposition
of the property or assets of such entity as an entirety or substantially as an entirety to the Company or any Restricted Subsidiary
or at the time such entity becomes a Restricted Subsidiary;

 

(iv)      any
Security Interest existing on the property, assets or shares of stock of any successor entity that becomes the Company in accordance
with the provisions of Section 5.1 of the Base Indenture;

 

    	 	10	 

     

    

 

(v)       any
Security Interest upon property or assets (x) existing at the time of, or created within 360 days after, the acquisition of such
property or assets, or (y) securing Indebtedness incurred to finance all or part of the purchase price of such property or assets
or the cost of constructing, improving, developing or expanding such property or assets that was incurred before, at the time of,
or created within 360 days after, the later to occur of the completion of such construction, improvement, development or expansion
or the commencement of commercial operation or use of the property or assets;

 

(vi)     any
Security Interest that secures any Indebtedness of a Restricted Subsidiary owing to the Company or another Restricted Subsidiary
or by the Company to a Restricted Subsidiary;

 

(vii)     mechanics’,
materialmen’s and other like liens (including those relating to construction, repair and storage) arising in the ordinary
course of business;

 

(viii)    any
Security Interest arising by reason of deposits or security given to governmental agencies required in order to do business with
the government;

 

(ix)      Security
Interests for taxes, assessments or governmental charges not yet delinquent or Security Interests for taxes, assessments or governmental
charges already delinquent but the validity of which is being contested in good faith;

 

(x)       Security
Interests (including judgment liens) arising in connection with legal proceedings so long as such proceedings are being contested
in good faith and, in the case of judgment liens, execution thereon is stayed;

 

(xi)      landlords’
liens on fixtures located on property leased by the Company or any Restricted Subsidiary in the ordinary course of business;

 

(xii)     any
Security Interest in favor of any governmental authority in connection with the financing of the cost of construction or acquisition
of property;

 

(xiii)    any
Security Interest incurred in connection with pollution control, sewage or solid waste disposal, industrial revenue or similar
financings;

 

(xiv)    any
Security Interest created by any program providing for the financing, sale or other disposition of trade or other receivables qualified
as current assets in accordance with GAAP entered into by the Company or by any Restricted Subsidiary, provided that such program
is on terms comparable for similar transactions, or any document executed by the Company or any Restricted Subsidiary in connection
therewith, and provided that such Security Interest is limited to the trade or other receivables in respect of which such program
is created or exists and the proceeds thereof; or

 

    	 	11	 

     

    

 

(xv)     any
extension, renewal or refunding (or successive extensions, renewals or refundings) in whole or in part of any Indebtedness secured
by any Security Interest referred to in the foregoing clauses (i) through (xiv), inclusive, provided that the Security Interest
securing such Indebtedness shall be limited to the property or assets which, immediately prior to such extension, renewal or refunding,
secured such Indebtedness and additions to such property or assets, and the principal amount of such refinancing Indebtedness secured
by such Security Interest does not exceed (x) the principal amount of such Indebtedness being refinanced plus (y) the aggregate
amount of fees, underwriting discounts, accrued and unpaid interest, premiums and other costs and expenses incurred in connection
with such above-referenced refinancings.

 

Notwithstanding the
foregoing provisions of this Section 4.6(a), the Company or any of its Restricted Subsidiaries may create, incur, assume or suffer
to exist any Indebtedness secured by a Security Interest without so securing the Notes if, at the time such Security Interest becomes
a Security Interest upon any Principal Property of the Company or such Restricted Subsidiary and after giving effect thereto, the
aggregate outstanding principal amount of all Indebtedness of the Company and its Restricted Subsidiaries secured by Security Interests
and permitted by this sentence (including the Attributable Debt in respect of Sale and Leaseback Transactions, but excluding Attributable
Debt in respect of any Sale and Leaseback Transactions the proceeds of which have been applied in accordance with Section 4.7(b))
does not exceed 15% of Consolidated Tangible Assets.

 

(b)       In
the event that the Company shall hereafter secure the Notes equally and ratably with or prior to any other obligation or Indebtedness
pursuant to the provisions of this Section 4.6, the Trustee is hereby authorized to enter into an indenture or agreement supplemental
hereto and to take such action, if any, as it may deem advisable to enable it to enforce effectively the rights of the Holders
of the Notes so secured, equally and ratably with or prior to such other obligations or Indebtedness.”

 

SECTION 2.11.  Limitations
on Sale and Leaseback Transactions. A new Section 4.7 shall be added after the newly added Section 4.6 of the Base Indenture,
which shall read as follows:

 

“Section 4.7
Limitations on Sale and Leaseback Transactions.

 

The Company will not,
and will not permit any Restricted Subsidiary to, enter into any arrangement with any person providing for the leasing to the Company
or any Restricted Subsidiary of any Principal Property owned or hereafter acquired by the Company or such Restricted Subsidiary
(except for temporary leases for a term of not more than three years and except for leases between the Company and a Restricted
Subsidiary or between Restricted Subsidiaries), which Principal Property has been or is to be sold or transferred by the Company
or such Restricted Subsidiary to such person (herein referred to as a “Sale and Leaseback Transaction”) unless:

 

(a)       the
Company or such Restricted Subsidiary would be permitted pursuant to Section 4.6 to incur Indebtedness secured by a Security Interest
on the Principal Property to be leased, in an aggregate principal amount equal to the Attributable Debt associated with such Sale
and Leaseback Transaction, without equally and ratably securing the Notes;

 

    	 	12	 

     

    

 

(b)       within
180 days after the effective date of the Sale and Leaseback Transaction, the Company applies an amount equal to the fair value
(as determined by the Board of Directors) of such Principal Property to be leased to the redemption or retirement of the Notes
and/or any other Securities issued under the Indenture or to the payment or other retirement of other Indebtedness of the Company
that ranks senior to or pari passu with the Notes or of Indebtedness incurred by any Restricted Subsidiary (other than, in either
case, Indebtedness owned by the Company or any Restricted Subsidiary); or

 

(c)       within
180 days after entering into the Sale and Leaseback Transaction, the Company enters into a bona fide commitment or commitments
to expend for the acquisition or capital improvement of a Principal Property an amount at least equal to the fair value (as determined
by the Board of Directors) of such Principal Property to be leased.

 

Notwithstanding the
foregoing, the Company may, and may permit any Restricted Subsidiary to, effect any Sale and Leaseback Transaction that is not
allowable under clauses (a) through (c) of this Section 4.7 if, at the time of such Sale and Leaseback Transaction, the Attributable
Debt associated with such Sale and Leaseback Transaction, together with the aggregate principal amount of outstanding Indebtedness
secured by Security Interests upon Principal Property pursuant to the last sentence of Section 4.6(a), does not exceed 15% of Consolidated
Tangible Assets. The calculation of such aggregate principal amount of outstanding Indebtedness secured by Security Interests upon
Principal Property shall exclude (i) the aggregate amount of fees, underwriting discounts, accrued and unpaid interest, premiums
and other costs and expenses incurred in connection with any refinancing and (ii) any Attributable Debt in connection with which
the Company has purchased property, retired or defeased Indebtedness as described in Section 4.7(b).”

 

SECTION 2.12.  Withholding
Taxes and Other Taxes. A new Section 4.8 shall be added after the newly added Section 4.7 of the Base Indenture, which shall
read as follows:

 

“Section 4.8   Withholding
Taxes and Other Taxes.

 

(a)       All
payments made by or on behalf of the Company under or with respect to the Notes will be made without withholding or deduction for,
or on account of, any present or future tax, duty, assessment or other governmental charge (including penalties, interest and other
liabilities related thereto) (“Taxes”) imposed or levied by or on behalf of (1) the government of Canada or
any province or territory of Canada, (2) any other jurisdiction in which the Company is organized or otherwise is resident for
tax purposes or (3) any jurisdiction from or through which payment is made, in each case including any political subdivision or
any authority or agency therein or thereof having power to tax (each, a “Relevant Taxing Jurisdiction”), unless
required by law or the interpretation or administration thereof. If the Company is obligated to withhold or deduct any amount on
account of Taxes imposed by a Relevant Taxing Jurisdiction from any payment made under or with respect to the Notes, the Company
shall:

    	 	13	 

     

    

 

(i)       make
such withholding or deduction;

 

(ii)       remit
the full amount deducted or withheld to the relevant government authority in accordance with the applicable law;

 

(iii)       subject
to the limitations in Section 4.8(b), pay such additional amounts (“Additional Amounts”) as additional interest
as may be necessary so that the net amounts received by each Holder, after such withholding or deduction (including any such withholding
or deduction on such Additional Amounts) will not be less than the amount such Holder would have received if such Taxes had not
been withheld or deducted;

 

(iv)       furnish
to the Trustee for the benefit of the Holders and beneficial owners of Notes, within 60 days after the date of the payment or remittance
of any Taxes is due pursuant to applicable law, certified copies of an official receipt of the relevant government authorities
for all amounts deducted or withheld pursuant to applicable law, or if such receipts are not reasonably obtainable, other documentation
evidencing the payment by the Company of those Taxes; and

 

(v)       at
least 15 days prior to each date on which any Additional Amounts are payable, deliver to the Trustee an Officer’s Certificate
setting forth the calculation of the Additional Amounts to be paid and such other information as the Trustee may request to enable
the Trustee to pay such Additional Amounts to Holders of Notes on the payment date.

 

(b)       Notwithstanding
the foregoing Section 4.8(a), no Additional Amounts will be paid with respect to or in respect of a payment made to or in respect
of any Holder or beneficial owner of the Notes (an “Excluded Holder”):

 

(i)         with
which the Company does not deal at arm’s length (within the meaning of the Income Tax Act (Canada)) at the time of
making such payment;

 

(ii)       for
or on account of Canadian withholding Taxes imposed on a payment under or with respect to a Note that is deemed under subsection
214(16) of the Income Tax Act (Canada) to be a dividend;

 

(iii)       for
or on account of any Taxes that are imposed or withheld as a result of the presentation of any Note for payment (where presentation
is required) by or on behalf of a Holder or beneficial owner who would have been able to avoid such Taxes by presenting the relevant
Note to another Paying Agent;

 

(iv)      which
is subject to such Taxes by reason of the Holder or the beneficial owner of the Notes (or a fiduciary, settlor, beneficiary, partner
of, member or shareholder of, or possessor of a power over, the relevant Holder or beneficial owner, if the relevant Holder or
beneficial owner is an estate, trust, nominee, partnership, limited liability company or corporation) being a resident, domiciliary
or national of, incorporated in, or engaged in business or maintaining a permanent establishment or other physical presence in
or otherwise having some present or former connection with the Relevant Taxing Jurisdiction otherwise than solely by the mere acquisition,
holding or disposition of the Notes or the receipt of payments or enforcement of rights thereunder;

    	 	14	 

     

    

 

(v)       for
or on account of any Taxes imposed or deducted or withheld by reason of the failure of the Holder or beneficial owner of the Notes
to complete, execute and deliver to the Company, any reasonable form or document concerning such Holder’s or beneficial owner’s
nationality, citizenship, residence, identity or connection with the Relevant Taxing Jurisdiction, provided (1) such form or document
is required by law (including any applicable tax treaty) or by reason of the interpretation or administration of such law in order
to enable the Company to make payments on the Notes without deduction or withholding for Taxes, or with deduction or withholding
of a lesser amount and (2) the Company has provided a timely written request to the Holder for such form or document;

 

(vi)       for
or on account of any Taxes imposed or withheld as a result of the presentation of any Note for payment (where presentation is required)
more than 30 days after the relevant payment is first made available for payment to the Holder or beneficial owner (except to the
extent that the Holder or beneficial owner would have been entitled to Additional Amounts had the Note been presented on the last
day of such 30-day period);

 

(vii)     for
or on account of any estate, inheritance, gift, sales, transfer, excise, personal property or similar Tax;

 

(viii)     for
or on account of any Tax that is payable otherwise than by withholding from payments under or with respect to the Notes (other
than taxes payable pursuant to Regulation 803 of the Income Tax Act (Canada), or any similar successor provision or equivalent
provision of any provincial or territorial law);

 

(ix)       if
the Holder is a fiduciary, partnership or person other than the sole beneficial owner of that payment, to the extent that such
payment would be required to be included in income under the laws of the Relevant Taxing Jurisdiction for tax purposes, of a beneficiary
or settlor with respect to the fiduciary, a member of that partnership or a beneficial owner who would not have been entitled to
such Additional Amounts had that beneficiary, settlor, member or beneficial owner been the Holder of the Notes;

 

(x)       for
or on account of any Tax imposed pursuant to Sections 1471 through 1474 of the Code (including any amended or successor version),
any current or future regulations or official interpretations thereof, any fiscal or regulatory legislation, rules or practices
adopted pursuant to an intergovernmental agreement, treaty or convention between a non-U.S. jurisdiction and the United States
with respect to the foregoing or any agreements entered into pursuant to Section 1471(b)(1) of the Code;

 

(xi)       any
Taxes imposed by the United States or any political subdivision thereof; or

 

(xii)     any
combination of the exceptions listed in clauses (i) through (xi) immediately above.

    	 	15	 

     

    

 

(c)       Any
reference in this Indenture to the payment of principal, premium, if any, interest, purchase price, redemption price or any other
amount payable under or with respect to any Note will be deemed to include the payment of Additional Amounts to the extent that,
in such context, Additional Amounts are, were or would be payable in respect thereof. The Company’s obligation to make payments
of Additional Amounts will survive any termination of this Indenture or the defeasance of any rights hereunder.

 

(d)       The
Company shall indemnify and hold harmless each Holder and beneficial owner of Notes (other than an Excluded Holder), and upon written
request therefor, shall reimburse each such Holder and beneficial owner (without duplication), for the full amount of (x) any Taxes
imposed by a Relevant Taxing Jurisdiction and paid by such Holder or beneficial owner as a result of payments made under or with
respect to the Notes and (y) any Taxes levied or imposed and paid by such Holder or beneficial owner with respect to any reimbursement
under (x) above, but excluding any such Taxes on or computed by reference to such Holder’s or beneficial owner’s net
income, revenue, profits or capital.

 

(e)       The
Company shall pay any present or future stamp, issue, registration, court or documentary taxes or any other excise, property or
similar Taxes that arise in any Relevant Taxing Jurisdiction from the execution, delivery, issuance, registration or enforcement
of the Notes, this Indenture or any other document or instrument in relation thereto, and the Company shall indemnify the Holders
and beneficial owners of the Notes for any such amounts (including penalties, interest and other liabilities related thereto) paid
by such Holders and beneficial owners.

 

(f)       Each
Holder or beneficial owner of the Notes shall cooperate with the Company and the Trustee to provide any information or documentation
reasonably requested by the Company or the Trustee in connection with the foregoing and to assist the Company or the Trustee in
determining the applicable withholding tax rate and the amount of Additional Amounts or indemnity payments payable in respect thereof
(though the foregoing shall impose no obligation on the Trustee other than pursuant to applicable laws or regulations).”

 

SECTION 2.13.  When
the Company May Merge, Amalgamate, Etc.. The first paragraph of Section 5.1 of the Base Indenture shall be amended and restated
in its entirety to read as follows:

 

“The
Company shall not, in a single transaction or through a series of related transactions, consolidate with or merge or amalgamate
with or into, or convey, transfer or lease all or substantially all of its properties and assets to, any person (a “successor
person”) if such transaction or series of transactions, in the aggregate, would result in a conveyance, transfer or lease
of all or substantially all of the properties and assets of the Company and its Restricted Subsidiaries on a consolidated basis
to any successor person, unless:

 

(a)       the
Company is the surviving corporation or the successor person (if other than the Company) is a corporation organized and validly
existing under the laws of Canada or any province or territory thereof or any U.S. domestic jurisdiction and assumes by supplemental
indenture the Company’s obligations under the Notes and the Indenture; and

    	 	16	 

     

    

 

(b)       immediately
after giving effect to such transaction, no default or event of default shall have occurred and be continuing.”

 

SECTION 2.14.  Covenant
Defeasance. The first paragraph of Section 8.4 of the Base Indenture shall be amended and restated in its entirety to read
as follows:

 

“The Company may omit to comply with
respect to the Notes with any term, provision or condition set forth under Sections 4.2, 4.3, 4.4, 4.5, 4.6, 4.7 and 5.1 as well
as Article XII (and the failure to comply with any such covenants shall not constitute a Default or Event of Default with respect
to the Notes under Section 6.1), provided that the following conditions shall have been satisfied:”

 

SECTION 2.15.  Change
of Control Triggering Event. A new Article XII shall be added after Article XI of the Base Indenture, which shall read as
follows:

 

“ARTICLE XII

 

REPURCHASE OF NOTES AT THE OPTION OF
THE HOLDERS

 

Section 12.1    Repurchase at Option of
Holders Upon a Change of Control Triggering Event

 

(a)       Upon
the occurrence of a Change of Control Triggering Event with respect to the Notes, unless the Company has exercised its right to
redeem the Notes pursuant to Article III of the Indenture, each Holder of Notes shall have the right to require the Company to
purchase all or a portion of such Holder’s Notes pursuant to the offer described below (the “Change of Control Offer”),
at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest, if any, to, but excluding,
the date of purchase (the “Change of Control Payment”), subject to the rights of Holders on the relevant record
date to receive interest due on the relevant interest payment date; provided that (i) any such portion to be repurchased
must be an integral multiple of $1,000 and (ii) the principal amount of any Note remaining after such repurchase must equal $2,000
or an integral multiple of $1,000 in excess thereof.

 

(b)       Within
30 days following the date upon which the Change of Control Triggering Event occurred with respect to the Notes, or at the Company’s
option, prior to any Change of Control but after the public announcement of the pending Change of Control, the Company shall send,
by first-class mail (or by electronic transmission or otherwise in accordance with the Applicable Procedures), a notice to each
Holder of Notes, with a copy to the Trustee, which notice shall govern the terms of the Change of Control Offer. Such notice shall
state:

 

(i)       the
events causing the Change of Control;

 

(ii)       the
date of the Change of Control;

 

(iii)       the
amount of the Change of Control Payment;

 

(iv)      the
purchase date, which must be no earlier than 30 days nor later than 60 days from the date such notice is sent, other than as may
be required by law (the “Change of Control Payment Date”);

 

    	 	17	 

     

    

 

(v)       if
the notice is sent prior to any Change of Control, that the Change of Control Offer is conditioned on the Change of Control being
consummated on or prior to the Change of Control Payment Date;

 

(vi)       the
name and address of the Paying Agent;

 

(vii)     that
the Holder must complete the Change of Control Repurchase Notice (as defined below) to participate in the Change of Control Offer;
and

 

(viii)    any
other procedures that Holders must follow to require the Company to repurchase the Notes.

 

(c)       Repurchases
of Notes under this Section 12.1 shall be made, at the option of the Holder thereof, upon:

 

(i)       delivery
to the Trustee (or other Paying Agent appointed by the Company) by a Holder of a duly completed notice (the “Change of
Control Repurchase Notice”) in the form set forth on the reverse of the Note at any time prior to 5:00 p.m., New York
City time, on the Change of Control Payment Date; or

 

(ii)       delivery
or book-entry transfer of the Notes to the Trustee (or other Paying Agent appointed by the Company) at any time after delivery
of the Change of Control Repurchase Notice (together with all necessary endorsements) at the Corporate Trust Office of the Trustee
(or other Paying Agent appointed by the Company), such delivery being a condition to receipt by the Holder of the Change of Control
Payment therefor; provided that such Change of Control Payment shall be so paid pursuant to this Section 12.1 only
if the Note so delivered to the Trustee (or other Paying Agent appointed by the Company) shall conform in all respects to the description
thereof in the related Change of Control Repurchase Notice.

 

The Change of Control
Repurchase Notice shall state:

 

(i)       if
certificated, the certificate numbers of Notes to be delivered for repurchase;

 

(ii)       the
portion of the principal amount of Notes to be repurchased (which portion to be repurchased must be an integral multiple of $1,000);

 

(iii)      that
the Notes are to be repurchased by the Company pursuant to the applicable provisions of the Notes and the Indenture; and

 

(iv)       if
such Change of Control Repurchase Notice is delivered prior to the occurrence of a Change of Control pursuant to a definitive agreement
giving rise to a Change of Control, that the Holder acknowledges that the Company’s offer is conditioned on the consummation
of such Change of Control; provided, however, that if the Notes are not in certificated form, the Change of Control
Repurchase Notice must comply with appropriate procedures of the Depositary.

 

    	 	18	 

     

    

  

(d)       On
the Change of Control Payment Date, the Company shall, to the extent lawful:

 

(i)        accept
or cause a third party to accept for payment all Notes or portions thereof properly tendered pursuant to the Change of Control
Offer;

 

(ii)       deposit
or cause a third party to deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes
or portions thereof properly tendered; and

 

(iii)      deliver
or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating the aggregate
principal amount of Notes being repurchased.

 

(e)       The
Company shall not be required to make a Change of Control Offer with respect to the Notes if a third party makes such an offer
in the manner, at the times and otherwise in compliance with the requirements for such an offer made by the Company and such third
party purchases all the Notes properly tendered and not withdrawn under its offer.

 

(f)       The
Trustee shall not have any obligation to monitor the occurrence or dates of any Change of Control Triggering Event and may rely
conclusively on an Officer’s Certificate from the Company related to such Change of Control Triggering Event. The Trustee
shall not have any obligation to notify the Holders of the occurrence or dates of any Change of Control Triggering Event.

 

Section 12.2   Compliance with
Tender Offer Rules

 

The Company shall comply
in all material respects with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations
thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of
a Change of Control Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with
the Change of Control Offer provisions of the Notes, the Company shall comply with those securities laws and regulations and shall
not be deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of any such
conflict.”

 

SECTION 2.16.  Consent
to Jurisdiction and Service. A new Section 10.19 shall be added after Section 10.18 of the Base Indenture, which shall read
as follows:

 

“Section 10.19
Consent to Jurisdiction and Service

 

The Company hereby
irrevocably submits to the exclusive jurisdiction of the federal and state courts in the Borough of Manhattan in The City of New
York and the County and State of New York, United States of America in any suit or proceeding arising out of or relating to the
Notes, the Indenture or the transactions contemplated thereby. The Company waives any objection which it may now or hereafter have
to the laying of venue of any such suit or proceeding in such courts. The Company agrees that final judgment in any such suit,
action or proceeding brought in any such court shall be conclusive and binding upon the Company and may be enforced in any court
to the jurisdiction of which the Company is subject by a suit upon such judgment. The Company irrevocably appoints Corporation
Service Company, located at 80 State Street, Albany, New York 12207-2543, as its authorized agent in the State of New York upon
which process may be served in any such suit or proceeding, and agrees that service of process upon such authorized agent, and
written notice of such service to the Company by the person serving the same to the address provided in this Section 10.19, shall
be deemed in every respect effective service of process upon the Company in any such suit or proceeding. The Company hereby represents
and warrants that such authorized agent has accepted such appointment and has agreed to act as such authorized agent for service
of process. The Company further agrees to take any and all action as may be necessary to maintain such designation and appointment
of such authorized agent in full force and effect for a period of seven years from the date of this Indenture.”

 

    	 	19	 

     

    

 

ARTICLE
THREE

 

MISCELLANEOUS

 

SECTION 3.1.  Construction.
Unless otherwise supplemented or amended by this First Supplemental Indenture, the Base Indenture is incorporated by reference
in full into this First Supplemental Indenture, and all parties to this First Supplemental Indenture agree to be bound by the
terms and provisions of the Base Indenture as supplemented and amended by this First Supplemental Indenture. The Base Indenture
and this First Supplemental Indenture shall be read, taken and construed as one and the same instrument. All provisions included
in this First Supplemental Indenture supersede any similar provisions included in the Base Indenture unless not permitted by law.

 

SECTION 3.2.  Conflicts.
If any provision hereof limits, qualifies or conflicts with another provision hereof which is required to be included in this
First Supplemental Indenture by any of the provisions of the Trust Indenture Act, such required provision shall control.

 

SECTION 3.3.  Successors
and Assigns. All covenants and agreements in this First Supplemental Indenture by the Company shall bind its successors and
assigns, whether so expressed or not.

 

SECTION 3.4.  Severability.
In case any provision in this First Supplemental Indenture or in the Notes shall be invalid, illegal or unenforceable, the validity,
legality and enforceability of the remaining provisions herein and therein shall not in any way be affected or impaired thereby.

 

SECTION 3.5.  Benefits
of the Indenture. Nothing in this First Supplemental Indenture, expressed or implied, shall give to any person, other than
the parties hereto and their successors hereunder, and the Holders of the Notes any benefit or any legal or equitable right, remedy
or claim under this First Supplemental Indenture.

 

SECTION 3.6.  Governing
Law. This First Supplemental Indenture and each Note shall be deemed to be a contract made under the laws of the State of
New York and this First Supplemental Indenture and each such Note shall be governed by and construed in accordance with the laws
of the State of New York.

 

    	 	20	 

     

    

 

SECTION 3.7.  Defined
Terms. All terms used in this First Supplemental Indenture not otherwise defined herein that are defined in the Base Indenture
shall have the meanings set forth therein.

 

SECTION 3.8.  Counterparts.
This First Supplemental Indenture may be executed in any number of counterparts, each of which shall be an original; but such
counterparts shall together constitute but one and the same instrument. Delivery of an executed counterpart of a signature page
hereto by facsimile or electronic transmission shall be as effective as delivery of a manually executed counterpart of this First
Supplemental Indenture.

 

SECTION 3.9.  Concerning
the Trustee. The recitals contained herein and in the Notes, except the Trustee’s certificates of authentication, shall
be taken as the statements of the Company, and the Trustee assumes no responsibility for their correctness. The Trustee makes
no representations as to the validity or sufficiency of this First Supplemental Indenture or the Notes. The Trustee shall not
be accountable for the use or application by the Company of Notes or the proceeds thereof.

 

[Signature pages follow]

 

    	 	21	 

     

    

 

IN WITNESS WHEREOF,
the parties hereto have caused this First Supplemental Indenture to be duly executed all as of the day and year first above written.

 

	 	WASTE CONNECTIONS, INC.
	 	 	 
	 	By:	/s/ Mary Anne Whitney
	 	 	Name: Mary Anne Whitney
	 	 	Title: Senior Vice President and Chief
	 	 	Financial Officer

 

     

     

    

 

	 	U.S. BANK NATIONAL ASSOCIATION, as Trustee
	 	 	 
	 	By:	/s/ Paula Oswald
	 	 	Name: Paula Oswald
	 	 	Title: Vice President

 

     

     

    

 

EXHIBIT A

 

[FORM OF FACE OF SECURITY]

 

[THIS SECURITY IS A
GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE OF A DEPOSITARY OR A SUCCESSOR DEPOSITARY. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON
OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED
EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY, WHICH SHALL BE CEDE & CO., BY A NOMINEE OF THE DEPOSITARY
TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A
NOMINEE OF SUCH A SUCCESSOR DEPOSITARY.

 

UNLESS THIS CERTIFICATE
IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE
COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT AND ANY SUCH CERTIFICATE ISSUED IS REGISTERED IN THE NAME
OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER
USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO.,
HAS AN INTEREST HEREIN.]1

 

WASTE CONNECTIONS, INC.

 

4.250% SENIOR NOTES DUE 2028

 

CUSIP NO. 941053AH3

 

ISIN NO. US941053AH36

 

	 	 	 
	No.                         	 	$                              

 

 

1 These
paragraphs should be included only if the Note is issued in global form.

 

    	 	A-1	 

     

    

 

Waste Connections,
Inc., a corporation existing under the laws of Ontario, Canada (herein called the “Company,” which term includes any
successor person under the Indenture hereinafter referred to), for value received, hereby promises to pay to [________________]2
or its registered assigns, the principal sum of ____________________ ($___________________) United States dollars[, or such greater
or lesser amount as may from time to time be endorsed on the Schedule of Increases and Decreases of Interests in the Global Note
attached hereto (but in no event may such amount exceed the aggregate principal amount of Notes authenticated pursuant to Section 2.3
of the Indenture referred to below and then outstanding pursuant the terms of the Indenture)]3,
on December 1, 2028, at the office or agency of the Company referred to below, and to pay interest thereon from [____________________]4
or from the most recent interest payment date to which interest has been paid or duly provided for, semi-annually on June 1 and
December 1 in each year, commencing June 1, 2019 at the rate of 4.250% per annum, in United States dollars, until the principal
hereof is paid or duly provided for. Interest shall be computed on the basis of a 360-day year comprised of twelve 30-day months.

 

The Company will duly
and punctually pay the principal of and interest, if any, on the Notes in whose name the Notes are registered at the close of business
on the May 15 and November 15 immediately preceding the related interest payment dates. On or before 11:00 a.m. New York City time,
on the applicable interest payment date, the Company shall deposit with the Paying Agent money sufficient to pay the principal
of and interest, if any, on the Notes. If the Company defaults in a payment of interest on the Notes, it shall pay the defaulted
interest, plus, to the extent permitted by law, any interest payable on the defaulted interest, to the Holders of the Notes on
a subsequent special record date. The Company shall fix the record date and payment date. At least 10 days before the special record
date, the Company shall send by first-class mail (or by electronic transmission or otherwise in accordance with the Applicable
Procedures) to the Trustee and to each Holder of the Notes a notice that states the special record date, the payment date and the
amount of interest to be paid. The Company may pay defaulted interest in any other lawful manner.

 

Payment of the principal
of, premium, if any, and interest on, this Security, and exchange or transfer of this Security, will be made at the office or agency
of the Company in The City of New York maintained for such purpose, or at such other office or agency as may be maintained for
such purpose (which initially will be the Corporate Trust Office of the Trustee or its affiliate located at 633 West Fifth Street,
Los Angeles, CA 90071), in such coin or currency of the United States of America as at the time of payment is legal tender for
payment of public and private debts; provided, however, that payment of interest may be made at the option of the Company by check
mailed to the address of the person entitled thereto as such address shall appear on the Security register.

 

Reference is hereby
made to the further provisions of this Security set forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

 

 

2 Cede & Co., if issued in
global form.

3 Use if Global Security

4 November 16, 2018 for the initial
Notes.

 

    	 	A-2	 

     

    

 

For purposes of the
disclosure required by the Interest Act (Canada), whenever any interest is calculated on the basis of a period of time other
than a calendar year, the annual rate of interest to which each rate of interest determined pursuant to such calculation is equivalent
for the purposes of the Interest Act (Canada) is such rate as so determined multiplied by the actual number of days in the
calendar year in which the same is to be ascertained and divided by the number of days used in the basis of such determination.

 

Unless the certificate
of authentication hereon has been duly executed by the Trustee referred to on the reverse hereof or by the authenticating agent
appointed as provided in the Indenture by manual signature of an authorized signer, this Security shall not be entitled to any
benefit under the Indenture, or be valid or obligatory for any purpose.

 

IN WITNESS WHEREOF,
the Company has caused this instrument to be duly executed by the manual or facsimile signature of one of its authorized officers.

 

	 	WASTE CONNECTIONS, INC., as Issuer

 

	 	By:	 
	 		Name:
	 		Title:

 

    	 	A-3	 

     

    

 

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

 

This is one of the
4.250% Senior Notes due 2028 referred to in the within- mentioned Indenture.

 

	 	U.S. BANK NATIONAL ASSOCIATION, as Trustee

 

	 	By:	 
	 	 	Authorized Signatory

 

Dated:

 

    	 	A-4	 

     

    

 

[FORM OF REVERSE SIDE OF SECURITY]

 

WASTE CONNECTIONS, INC.

 

4.250% Senior Notes due 2028

 

This Security is one
of a duly authorized issue of Securities of the Company designated as its 4.250% Senior Notes due 2028 (herein called the “Securities”),
initially in aggregate principal amount to $500,000,000, issued under and subject to the terms of an indenture (herein called the
“Indenture”) dated as of November 16, 2018, between the Company and U.S. Bank National Association, as trustee (herein
called the “Trustee,” which term includes any successor trustee under the Indenture), as supplemented by a First Supplemental
Indenture, dated as of November 16, 2018, between the Company and the Trustee to which the Indenture reference is hereby made for
a statement of the respective rights, limitations of rights, duties, obligations and immunities thereunder of the Company, the
Trustee and the Holders of the Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered.

 

This Security is subject
to optional redemption and a special tax redemption, and may be the subject of an offer to purchase, as further described in the
Indenture. The Company shall not be required to make mandatory redemption or sinking fund payments with respect to the Securities.
In the event of redemption of this Security in accordance with the Indenture in part only, a new Security or Securities in principal
amount equal to the unredeemed portion hereof shall be issued in the name of the Holder hereof upon the cancellation hereof.

 

Upon the occurrence
of a Change of Control Triggering Event with respect to the Securities, unless the Company has exercised its right to redeem the
Securities pursuant to Article III of the Indenture, each Holder of the Securities shall have the right to require the Company
to purchase all or a portion (such that (i) any such portion to be repurchased must be an integral multiple of $1,000 and (ii)
the principal amount of any Note remaining after such repurchase must equal $2,000 or an integral multiple of $1,000 in excess
thereof) of such Holder’s Security pursuant to Article XII of the Indenture.

 

If an Event of Default
shall occur and be continuing, the principal amount of all the Securities may be declared due and payable in the manner and with
the effect provided in the Indenture.

 

The Indenture contains
provisions for defeasance at any time of (a) the entire Indebtedness on the Securities and (b) certain covenants and
Events of Default, in each case upon compliance with certain conditions set forth therein.

 

The Indenture permits,
with certain exceptions (including certain amendments permitted without the consent of any Holders and certain amendments which
require the consent of all of the Holders) as therein provided, the amendment thereof and the modification of the rights and obligations
of the Company and the rights of the Holders under the Indenture and the Securities at any time by the Company and the Trustee
with the consent of the Holders of at least a majority in aggregate principal amount of the Securities at the time Outstanding
that are affected. The Indenture also contains provisions permitting the Holders of at least a majority in aggregate principal
amount of the Securities (100% of the Holders in certain circumstances) at the time Outstanding that are affected, to waive compliance
by the Company with certain provisions of the Indenture and the Securities and certain past Defaults and Events of Default under
the Indenture and the Securities and their consequences. Any such consent, amendment or waiver by or on behalf of the Holder of
this Security, once effective, shall be conclusive and binding upon every Holder affected by such amendment or waiver, with certain
exceptions. and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or
in exchange herefor or in lieu hereof whether or not notation of such consent or waiver is made upon this Security.

 

    	 	A-5	 

     

    

 

No reference herein
to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company or any
other obligor on the Securities (in the event such other obligor is obligated to make payments in respect of the Securities), which
is absolute and unconditional, to pay the principal of, and premium, if any, and interest, if any, on, this Security at the times,
place, and rate, and in the coin or currency, herein prescribed without the consent of the Holder of this Security.

 

As provided in the
Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the register that
the Registrar shall keep with respect to the Securities and to their transfer and exchange, upon surrender of this Security for
registration of transfer at the office or agency of the Company at the Corporate Trust Office, and thereupon one or more new Securities,
of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.

 

Except as indicated
in the Indenture, no service charge shall be made for any registration of transfer or exchange of Securities, but the Company may
require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

 

A director, officer,
employee or stockholder (past or present), as such, of the Company shall not have any liability for any obligations of the Company
under the Securities or the Indenture or for any claim based on, in respect of or by reason of such obligations or their creation.
By accepting a Security, each Holder waives and releases all such liability. The waiver and release are part of the consideration
for the issue of the Securities.

 

Prior to due presentment
of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the
person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security is overdue,
and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

 

The Company, the Trustee
and any Agent shall treat a person as the Holder of such principal amount of outstanding Notes represented by a Global Security
as shall be specified in a written statement of the Depositary or by the applicable procedures of such Depositary with respect
to such Global Security, for purposes of obtaining any consents, declarations, waivers or directions required to be given by the
Holders pursuant to the Indenture.

 

THIS SECURITY
SHALL BE DEEMED TO BE A CONTRACT MADE UNDER THE LAWS OF THE STATE OF NEW YORK AND THIS SECURITY SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

 

All terms used in this
Security which are defined in the Indenture and not otherwise defined herein shall have the meanings assigned to them in the Indenture.

 

    	 	A-6	 

     

    

 

CHANGE OF CONTROL REPURCHASE NOTICE

 

If you want to elect to have only part of the Security purchased
by the Company pursuant to Section 12.1 of the Indenture, state the amount you elect to have purchased:

 

$ _______________________

 

Date: ____________________

 

Your Signature: __________________________________

 

(Sign exactly as your name appears on the face of this Security)

 

Tax Identification No: _____________________________

 

Signature Guarantee*: _____________________________

 

*Participant in a recognized Signature Guarantee Medallion Program
(or other signature guarantor acceptable to the Trustee).

 

    	 	A-7	 

     

    

 

SCHEDULE OF INCREASES AND DECREASES OF INTERESTS

IN THE GLOBAL SECURITY5

 

The following increases
or decreases in this Global Security have been made:

 

	Date of

Exchange	 	Amount of

decrease in

Principal Amount

of this Global

Security	 	Amount of

increase in

Principal Amount

of this Global

Security	 	
        Principal Amount

        of this Global

        Security following

        such decrease (or

        increase)
	 	Signature of

authorized officer

of Trustee or Note

Custodian
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 

 

 

		5	This should be included only if the Security is a Global Security.

 

    	 	A-8

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