Exhibit 4.2


 


SPECIMEN CLASS A COMMON STOCK CERTIFICATE


 


	
    NUMBER

    C-
	 	SHARES


 


SEE REVERSE FOR CERTAIN


DEFINITIONS


 


CUSIP
[●]


 


CLEAN EARTH ACQUISITIONS CORP.


 


CLASS A COMMON STOCK


 


THIS CERTIFIES THAT                    is
the owner of                    fully
paid and non-assessable shares of Class A common stock, par value $0.0001 per share (the “Common Stock”),
of Clean Earth Acquisitions Corp., a Delaware corporation (the “Company”), transferable on the books of the
Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed.


 


This certificate is not valid unless countersigned
by the Transfer Agent and registered by the Registrar of the Company.


 


Witness the facsimile signature of a duly authorized
signatory of the Company.


 


	
	 	

	Authorized Signatory	 	Transfer Agent


 






     


     


    

 


 


CLEAN EARTH ACQUISITIONS CORP.


 


The Company will furnish without charge to each
stockholder who so requests, a statement of the powers, designations, preferences and relative, participating, optional or other special
rights of each class of equity or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences
and/or rights. This certificate and the shares represented thereby are issued and shall be held subject to all the provisions of the Company’s
Second Amended and Restated Certificate of Incorporation and all amendments thereto and resolutions of the Board of Directors providing
for the issue of securities (copies of which may be obtained from the secretary of the Company), to all of which the holder of this certificate
by acceptance hereof assents.


 


The following abbreviations, when used in the
inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or
regulations:


 


	TEN COM	 	—	 	as tenants in common	 	UNIF GIFT MIN ACT	 	—	 	Custodian
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	TEN ENT	 	—	 	as tenants by the entireties	 	 	 	 	 	


    (Cust)
	 	 	 	


    (Minor)

	 	 	 	 	 	 
	JT TEN	 	—	 	as joint tenants with right of survivorship and not as tenants in common	 	 	 	 	 	under Uniform Gifts to Minors

 Act
	 	

	 	 	 	 	 	 	 	 	 	 	(State)


 


Additional abbreviations may also be used though
not in the above list.


 


For value received,                    hereby
sells, assigns and transfers unto


 


(PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING
NUMBER(S) OF ASSIGNEE(S))


 


(PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING
ZIP CODE, OF ASSIGNEE(S))


 


shares of Common Stock represented by the within
Certificate, and hereby irrevocably constitutes and appoints


 


Attorney to transfer the said shares of Common
Stock on the books of the within named Company with full power of substitution in the premises.


 


	Dated	 	
  
	 	 	Notice: The signature(s) to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.








 


	
    Signature(s) Guaranteed:
	 	 
	 	 	 
	THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED (OR ANY SUCCESSOR RULE).	 	 


 






     


     


    

 


As more fully described in, and subject to the terms and conditions
described in, the Company’s final prospectus for its initial public offering dated             ,
2021, the holder(s) of this certificate shall be entitled to receive a pro rata portion of certain funds held in the trust account
established in connection with the Company’s initial public offering only in the event that (i) the Company redeems the shares
of Common Stock sold in the Company’s initial public offering and liquidates because it does not consummate an initial business
combination by the date set forth (the “Last Date”) in the Company’s Second Amended and Restated Certificate of Incorporation,
as the same may be amended from time to time (the “Charter”), (ii) the Company redeems the shares of Common Stock sold
in its initial public offering properly submitted in connection with a stockholder vote to amend the Charter to modify the substance or
timing of the Company’s obligation to redeem 100% of the Common Stock if it does not consummate an initial business combination
by the Last Date or with respect to any other material provisions relating to stockholders’ rights or pre-initial business
combination activity, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective shares of Common
Stock in connection with a tender offer (or proxy solicitation, solely in the event the Company seeks stockholder approval of the proposed
initial business combination) setting forth the details of a proposed initial business combination. In no other circumstances shall the
holder(s) have any right or interest of any kind in or to the trust account.