StacksVerified U.S. regulatory reference

43 CFR §3175.90

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)The operator may use a mechanical recorder as a secondary device only on very-low-volume and low-volume FMPs.
  2. (b)Table 1 to this section lists the standards that the operator must follow to install, operate, and maintain mechanical recorders. A requirement applies when a column is marked with an “x” or a number.