40 CFR 80.9 - Rounding.

Regulations last checked for updates: Oct 04, 2026

Title 40 - Protection of Environment last revised: Oct 01, 2026

§ 80.9 - Rounding.

(a) Test results and calculated values reported to EPA under this part must be rounded according to 40 CFR 1090.50(a) through (d).

(b) Calculated values under this part may only be rounded when reported to EPA.

[88 FR 44563, July 12, 2023]

authority: 42 U.S.C. 7414,7521,7542,7545,and

source: 38 FR 1255, Jan. 10, 1973, unless otherwise noted.

cite as: 40 CFR 80.9