StacksVerified U.S. federal law reference

40 CFR §469.23 — Monitoring.

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The certification alternative to monitoring for Total Toxic Organics (TTO) described in § 469.13 (a), (b), (c), and (d) is applicable to this subpart.