Cal. Code Regs. tit. 17 § 91501

Current through Register 2024 Notice Reg. No. 36, September 6, 2024
Section 91501 - Definitions

The following definitions shall apply in this sub-chapter.

(a) "Air quality plan" includes, but is not limited to, attainment, rate-of-progress, and maintenance plans adopted by Districts pursuant to State requirements specified in Chapter 10 (commencing with section 40910) of Part 3 of Division 26 of the Health & Safety Code (the California Clean Air Act), and federal requirements specified in the Clean Air Act governing the State Implementation Plan (SIP).
(b) "Certified" means an interchangeable credit has been evaluated by the air pollution control officer of the affected District pursuant to the requirements of this sub-chapter and found to comply with all applicable District, state, and federal requirements.
(c) "Credit generation period" means the period of time, specified by year, in which interchangeable credits are generated.
(d) "Emission reduction duration" means the length of time during which the action generating the emission reduction credit results in verifiable and surplus emission reductions.
(e) "Hazard Index" means the ratio of the concentration of a toxic pollutant with non-cancer health effects and the reference exposure level for that pollutant.
(f) "Interchangeable credit" means an emission reduction credit generated from a stationary, mobile, or area source that can be used, traded, or banked among programs and/or source categories as specified in this regulation and in accordance with state and federal law.
(g) "Reference Exposure Level" means a concentration level at or below which no adverse health effects are anticipated.
(h) "Registered" means that an interchangeable credit has been deposited, withdrawn, or transferred through the act of recording a transaction in a District's banking register.
(i) "Surplus" means that the reduction is not required or assumed throughout the time of the emission reduction duration by any local, state or federal permit, rule, regulation, law, ordinance or the most recent locally approved air quality plan, or control measure implementation date. If the control efficiency or emission standard in the most recent locally approved air quality plan is less stringent than the control efficiency or emission standard in the applicable SIP for a specific source category, then the federally approved SIP will be used for purposes of determining surplus reductions.
(j) "Total Hazard Index" means the sum of hazard indices for pollutants with non-cancer health effects that have same or similar adverse health effects.

Cal. Code Regs. Tit. 17, § 91501

1. New section filed 4-14-98; operative 4-14-98 pursuant to Government Code section 11343.4(d) (Register 98, No. 16).

Note: Authority cited: Sections 39600, 39601 and 39607.5(a), Health and Safety Code. Reference: Sections 39607.5(b), 40709- 40714.5 and 40920.6(c), Health and Safety Code.

1. New section filed 4-14-98; operative 4-14-98 pursuant to Government Code section 11343.4(d) (Register 98, No. 16).