---
kind: "section"
citation: "46 C.F.R. § 56.85-10"
title: "46"
number: "56.85-10"
heading: "Preheating."
url: "https://uscodex.org/cfr/46/56.85-10"
---

# §56.85-10. Preheating.


The minimum welding preheat procedures and temperatures must be as stated in [section 131](/cfr/46/131.md) and Table 131.4.1 of ASME B31.1 (incorporated by reference; see [§ 56.01-2](/cfr/46/56.01-2.md)).


## Notes

### Amendments

[CGFR 68-82, 33 FR 18843, Dec. 18, 1968, as amended by CGFR 69-127, 35 FR 9980, June 17, 1970; CGD 72-104R, 37 FR 14234, July 18, 1972; CGD 72-206R, 38 FR 17229, June 29, 1973; CGD 73-254, 40 FR 40166, Sept. 2, 1975; CGD 77-140, 54 FR 40615, Oct. 2, 1989; USCG-2003-16630, 73 FR 65185, Oct. 31, 2008]

### Source

Source: CGFR 68-82, 33 FR 18843, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50158, June 12, 2024, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1321(j), 1509; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGFR 68-82, 33 FR 18843, Dec. 18, 1968, unless otherwise noted.

### Amendments

[CGFR 68-82, 33 FR 18843, Dec. 18, 1968, as amended by CGFR 69-127, 35 FR 9980, June 17, 1970; CGD 72-104R, 37 FR 14234, July 18, 1972; CGD 72-206R, 38 FR 17229, June 29, 1973; CGD 73-254, 40 FR 40166, Sept. 2, 1975; CGD 77-140, 54 FR 40615, Oct. 2, 1989; USCG-2003-16630, 73 FR 65185, Oct. 31, 2008]