StacksVerified U.S. regulatory reference

46 CFR §64.77

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
For the handling and stowage requirements in § 98.30-3 of this chapter, each MPT must pass the following inspections and tests conducted by the owner or the owner's representative:
  1. (a)Pressure relief and vacuum relief devices must be inspected one time or more during each 12 month period of service in accordance with § 64.79.
  2. (b)An MPT must be inspected during the 30 months before any month in which it is in service in accordance with § 64.81.
  3. (c)An MPT must pass a hydrostatic test in accordance with § 64.83 during the 60 months before any month in which it is in service.
  4. (d)After each welded repair, an MPT must pass a hydrostatic test in accordance with § 64.83.