The labeling governs. Where a packet and your labeling differ, follow the labeling and
tell us so the packet can be corrected. Nothing here is legal advice, and nothing here is a regulatory,
government or manufacturer endorsement.
Worker Protection Standard. Stored commodities are excluded from the Worker Protection
Standard by 40 CFR 170.303(b)(5) and (b)(8), so the stored-grain packet contains no WPS elements. For
burrow work the Standard reaches only vertebrate control directly related to producing an agricultural
plant on an agricultural establishment.
OSHA. Each employer decides which standards reach its own employees; these packets make
no determination. Federal OSHA applies only the part 1910 standards listed in 29 CFR 1928.21(a) to
agricultural operations. 29 CFR 1910.146 does not apply to agriculture. 29 CFR 1910.272 reaches the
grain-handling facilities it lists, not on-farm storage.
Exposure readings. Where 29 CFR 1910.1000 applies, OSHA Table Z-1 lists phosphine at
0.3 ppm (0.4 mg/m³) as an 8-hour time-weighted average from breathing-zone samples — a single
reading is not that average.
Formats. The fillable PDF is the primary download. The Word version is secondary and
Microsoft Word is the supported editor.