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15 CFR § 712.1 - Round to zero rule that applies to activities involving Schedule 1 chemicals.

---
identifier: "/us/cfr/t15/s712.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "15 CFR § 712.1 - Round to zero rule that applies to activities involving Schedule 1 chemicals."
title_number: 15
title_name: "Commerce and Foreign Trade"
section_number: "712.1"
section_name: "Round to zero rule that applies to activities involving Schedule 1 chemicals."
chapter_name: "BUREAU OF INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE"
subchapter_number: "B"
subchapter_name: "CHEMICAL WEAPONS CONVENTION REGULATIONS"
part_number: "712"
part_name: "ACTIVITIES INVOLVING SCHEDULE 1 CHEMICALS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "22 U.S.C. 6701  50 U.S.C. 1601  50 U.S.C. 1701  E.O. 12938, 59 FR 59099, 3 CFR, 1994 Comp., p. 950, as amended by E.O. 13094, 63 FR 40803, 3 CFR, 1998 Comp., p. 200; E.O. 13128, 64 FR 36703, 3 CFR 1999 Comp., p. 199."
regulatory_source: "71 FR 24929, Apr. 27, 2006, unless otherwise noted."
cfr_part: "712"
---

# 712.1 Round to zero rule that applies to activities involving Schedule 1 chemicals.

Facilities that produce, export or import mixtures containing less than 0.5% aggregate quantities of Schedule 1 chemicals (see supplement no. 1 to this part) as unavoidable by-products or impurities may round to zero and are not subject to the provisions of this part 712. Schedule 1 content may be calculated by volume or weight, whichever yields the lesser percent. Note that such mixtures may be subject to the regulatory requirements of other federal agencies.