Regulations last checked for updates: Mar 13, 2025

Title 40 - Protection of Environment last revised: Nov 13, 2025
§ 1090.1835 - Alternative procedures for certified pentane blenders.
Link to an amendment published at 90 FR 4371, Jan. 15, 2025.

(a) An auditor must use the procedures in this section instead of or in addition to the applicable procedures in § 1090.1810 for a certified pentane blender that blends certified pentane into PCG under § 1090.1320(b).

(b) An auditor must apply the procedures in § 1090.1830 by substituting “pentane” for “butane” in all cases.

source: 85 FR 78469, Dec. 4, 2020, unless otherwise noted.
cite as: 40 CFR 1090.1835