Direct assessment.

  1. Law
  2. CFR 49
  3. Transportation
  4. Other Regulations Relating to Transportation
  5. Pipeline and Hazardous Materials Safety Administration, Department of Transportation
  6. Pipeline Safety
  7. Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards
  8. Requirements for Corrosion Control
  9. Direct assessment.

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§ 192.490 Direct assessment.

Each operator that uses direct assessment as defined in § 192.903 on an onshore transmission line made primarily of steel or iron to evaluate the effects of a threat in the first column must carry out the direct assessment according to the standard listed in the second column. These standards do not apply to methods associated with direct assessment, such as close interval surveys, voltage gradient surveys, or examination of exposed pipelines, when used separately from the direct assessment process.

Expand Table
Threat Standard1
External corrosion § 192.9252
Internal corrosion in pipelines that transport dry gas § 192.927
Stress corrosion cracking § 192.929

1 For lines not subject to subpart O of this part, the terms “covered segment” and “covered pipeline segment” in §§ 192.925, 192.927, and 192.929 refer to the pipeline segment on which direct assessment is performed.

2 In § 192.925(b), the provision regarding detection of coating damage applies only to pipelines subject to subpart O of this part.

[Amdt. 192-101, 70 FR 61575, Oct. 25, 2005]


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