Exposure Monitoring (DecaBDE/PIP 3:1)

Owners/operators must conduct initial and periodic monitoring of worker exposure in regulated areas. Monitoring data cannot exceed 5 years old. Initial deadlines: May 5, 2025 (most facilities); November 9, 2026 (federal agencies, non-federal labs).

40 CFR §§ 751.405(d), 751.407(f); EPA Final Rule (November 2024).

Facilities must establish monitoring programs including: baseline measurements, periodic re-monitoring, documentation, and comparison against ECEL and STEL limits. Non-compliant (>5 year old) data is not acceptable.

A PIP (3:1) compounding facility must complete initial monitoring for all workers by May 5, 2025.