Regulations last checked for updates: Feb 13, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 1090.1835 - Alternative procedures for certified pentane blenders.

(a) An auditor must perform the procedures specified 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.

[85 FR 78469, Dec. 4, 2020, as amended at 90 FR 4371, Jan. 15, 2025]
source: 85 FR 78469, Dec. 4, 2020, unless otherwise noted.
cite as: 40 CFR 1090.1835