StacksVerified U.S. regulatory reference

40 CFR §98.327

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
In addition to the information required by § 98.3(g), you must retain the following records:
  1. (a)Calibration records for all monitoring equipment, including the method or manufacturer's specification used for calibration.
  2. (b)Records of gas sales.
  3. (c)Logbooks of parameter measurements.
  4. (d)Laboratory analyses of samples.