---
kind: "section"
citation: "46 C.F.R. § 64.81"
title: "46"
number: "64.81"
heading: "30-month inspection of an MPT."
url: "https://uscodex.org/cfr/46/64.81"
---

# §64.81. 30-month inspection of an MPT.

- (a) The 30-month inspection of an MPT required in [§ 64.77(b)](/cfr/46/64.77.md?p=b) must include—
  - (1) **An internal and external examination for—**
    - (i) Corrosion;
    - (ii) Cracking of base material; and
    - (iii) Weld defects; and
  - (2) A visual inspection for defective parts and a manual operation of the gauging device, remote operating mechanism, and each valve, except the pressure relief device.
- (b) If the tank passes the inspection required in [paragraph (a)](#a) of this section, the owner or his representative may stencil the date of the inspection on the MPT near the metal identification plate that is required in [§ 64.53](/cfr/46/64.53.md) in durable and legible letters that are 1 1/4 inch in height or larger.

## Notes

### Authority

Authority: 46 U.S.C. 3306, 3703; 49 U.S.C. App. 1804; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3.

### Source

Source: CGD 73-172, 39 FR 22950, June 25, 1974, unless otherwise noted.