40 CFR § 74.41 - Identifying allowances.

---
identifier: "/us/cfr/t40/s74.41"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 74.41 - Identifying allowances."
title_number: 40
title_name: "Protection of Environment"
section_number: "74.41"
section_name: "Identifying allowances."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "74"
part_name: "SULFUR DIOXIDE OPT-INS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7601 and 7651"
regulatory_source: "60 FR 17115, Apr. 4, 1995, unless otherwise noted."
cfr_part: "74"
---


# 74.41 Identifying allowances.

(a) *Identifying allowances.* Allowances allocated to an opt-in source will be assigned a serial number that identifies them as being allocated under an opt-in permit.

(b) *Submittal of opt-in allowances for auction.* (1) An authorized account representative may offer for sale in the spot auction under § 73.70 of this chapter allowances that are allocated to opt-in sources, if the allowances have a compliance use date earlier than the year in which the spot auction is to be held and if the Administrator has completed the deductions for compliance under § 73.35(b) for the compliance year corresponding to the compliance use date of the offered allowances.

(2) Authorized account representatives may not offer for sale in the advance auctions under § 73.70 of this chapter allowances allocated to opt-in sources.