SECTION 500 - MONITORING AND RECORDS 

501 REPORTING REQUIREMENTS: The owner and/or operator of any air pollution 

source shall maintain records of all emissions testing and monitoring, records 

detailing all malfunctions which may cause any applicable emission limitation to be 

exceeded, records detailing the implementation of approved control plans and 

compliance schedules, records required as a condition of any permit, records of 

materials used or produced, and any other records relating to the emission of air 

contaminants which may be requested by the Control Officer. 

502 DATA REPORTING: When requested by the Control Officer, a person shall 

furnish to the Department information to locate and classify air contaminant 

sources according to type, level, duration, frequency, and other characteristics of 

emissions and such other information as may be necessary. This information shall 

be sufficient to evaluate the effect on air quality and compliance with these rules. 

The owner and/or operator of a source requested to submit information under 

Section 501 of this rule may subsequently be required to submit annually, or at 

such intervals specified by the Control Officer, reports detailing any changes in the 

nature of the source since the previous report and the total annual quantities of . 

materials used or air contaminants emitted. 

503 EMISSION STATEMENTS REQUIRED AS STATED IN THE ACT: Upon request 

of the Control Officer and as directed by the Control Officer, the owner and/or 

operator of any source which emits or may emit oxides of nitrogen (NOx) or 

volatile organic compounds (VOC) shall provide the Control Officer with an 

emission statement, in such form as the Control Officer prescribes, showing 

measured actual emissions or estimated actual emissions of NOx and VOC from 

that source. At a minimum, the emission statement shall contain all information 

required by the Consolidated Emissions Reporting Rule in 40 CFR 51, Subpart A, 

Appendix A, Table 2A, which is incorporated by reference in Appendix G of these 

rules. The statement shall contain emissions for the time period specified by the 

Control Officer. The statement shall also contain a certification by a responsible 

official of the company that the information contained in the statement is accurate 

to the best knowledge of the individual certifying the statement. Statements shall 

be submitted annually to the Department. The Control Officer may waive this 

requirement for the owner and/or operator of any source which emits less than 25 

tons per year of oxides of nitrogen or volatile organic compounds with an 

approved emission inventory for sources based on AP-42 or other methodologies 

approved by the Administrator. 

504 RETENTION OF RECORDS: Information and records required by applicable 

requirements and copies of summarizing reports recorded by the owner and/or 

operator and submitted to the Control Officer shall be retained by the owner and/or 

operator for five years after the date on which the information is recorded or the 

report is submitted. Non-Title V sources may retain such information, records, and 

reports for less than five years, if otherwise allowed by these rules. 

505 ANNUAL EMISSIONS INVENTORY REPORT: 
505.1 Upon request of the Control Officer and as directed by the Control Officer, 

the owner and/or operator of a business shall complete and shall submit to 

the Control Officer an annual emissions inventory report. The report is due 

by April 30, or 90 days after the Control Officer makes the inventory 

formes) available, whichever occurs later. These requirements apply 

whether or not a permit has been issued and whether or not a permit 

application has been filed. 

505.2 The annual emissions inventory report shall be in the format provided by 

the Control Officer. 

505.3 The Control Officer may require submittal of supplemental emissions 

inventory information forms for air contaminants under ARS §49-476.01, 

ARS §49-480.03, and Rule 372-Maricopa County Hazardous Air Pollutants 

(HAPs) Program of these rules.