Under 1910.1044 App A, what is the permissible airborne exposure limit for DBCP (time-weighted average)?
The permissible airborne exposure limit for DBCP is 1 part per billion (1 ppb) as an 8‑hour time‑weighted average (TWA). This numeric limit and its application are stated in Appendix A to 1910.1044 and implemented under the DBCP standard at 1910.1044.