---
kind: "section"
citation: "49 C.F.R. § 192.931"
title: "49"
number: "192.931"
heading: "How may Confirmatory Direct Assessment (CDA) be used?"
url: "https://uscodex.org/cfr/49/192.931"
---

# §192.931. How may Confirmatory Direct Assessment (CDA) be used?


An operator using the confirmatory direct assessment (CDA) method as allowed in [§ 192.937](/cfr/49/192.937.md) must have a plan that meets the requirements of this section and of [§§ 192.925 (ECDA)](/cfr/49/192.925.md?p=ECDA) and [§ 192.927 (ICDA)](/cfr/49/192.927.md?p=ICDA).

- (a) **Threats.** An operator may only use CDA on a covered segment to identify damage resulting from external corrosion or internal corrosion.
- (b) **External corrosion plan.** An operator's CDA plan for identifying external corrosion must comply with [§ 192.925](/cfr/49/192.925.md) with the following exceptions.
  - (1) The procedures for indirect examination may allow use of only one indirect examination tool suitable for the application.
  - (2) The procedures for direct examination and remediation must provide that—
    - (i) All immediate action indications must be excavated for each ECDA region; and
    - (ii) At least one high risk indication that meets the criteria of scheduled action must be excavated in each ECDA region.
- (c) **Internal corrosion plan.** An operator's CDA plan for identifying internal corrosion must comply with [§ 192.927](/cfr/49/192.927.md) except that the plan's procedures for identifying locations for excavation may require excavation of only one high risk location in each ICDA region.
- (d) **Defects requiring near-term remediation.** If an assessment carried out under paragraph [(b)](#b) or [(c)](#c) of this section reveals any defect requiring remediation prior to the next scheduled assessment, the operator must schedule the next assessment in accordance with NACE SP0502 (incorporated by reference, see [§ 192.7](/cfr/49/192.7.md)), section [6.2](/cfr/49/6.2.md) and [6.3](/cfr/49/6.3.md). If the defect requires immediate remediation, then the operator must reduce pressure consistent with [§ 192.933](/cfr/49/192.933.md) until the operator has completed reassessment using one of the assessment techniques allowed in [§ 192.937](/cfr/49/192.937.md).

## Notes

### Amendments

[68 FR 69817, Dec. 15, 2003, as amended by Amdt. 192-114, 75 FR 48604, Aug. 11, 2010; Amdt. 192-119, 80 FR 178, Jan. 5, 2015]

### Source

Source: 68 FR 69817, Dec. 15, 2003, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 185(w)(3), 49 U.S.C. 5103, 60101 et. seq., and 49 CFR 1.97.

### Source

Source: 35 FR 13257, Aug. 19, 1970, unless otherwise noted.

### Amendments

[68 FR 69817, Dec. 15, 2003, as amended by Amdt. 192-114, 75 FR 48604, Aug. 11, 2010; Amdt. 192-119, 80 FR 178, Jan. 5, 2015]