---identifier: "/us/cfr/t46/s50.20-25"source: "ecfr"legal_status: "authoritative_unofficial"title: "46 CFR § 50.20-25 - Calculations."title_number: 46title_name: "Shipping"section_number: "50.20-25"section_name: "Calculations."chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"subchapter_number: "F"subchapter_name: "MARINE ENGINEERING"part_number: "50"part_name: "GENERAL PROVISIONS"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"authority: "43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3; Section 50.01-20 also issued under the authority of 44 U.S.C. 3507."regulatory_source: "CGFR 68-82, 33 FR 18808, Dec. 18, 1968, unless otherwise noted."cfr_part: "50"---
Identifier
/us/cfr/t46/s50.20-25
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Coast Guard, Department of Homeland Security
Authority
43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3; Section 50.01-20 also issued under ... 43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3; Section 50.01-20 also issued under the authority of 44 U.S.C. 3507.
# 50.20-25 Calculations.(a) Calculations must be forwarded with plans submitted for approval and must clearly substantiate compliance with this subchapter. Care must be taken to identify sources of equations, factors and other information upon which the calculations are based.(b) The results of the calculations, such as the maximum allowable working pressure (MAWP), test pressure, and safety device settings, must be clearly identified.