49 CFR 192 RULES & REGULATIONS

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CLASS LOCATIONS (CLASS 1, CLASS 2, CLASS 3, CLASS 4)

 Design factors, which are used in the formula to determine the design pressure for steel pipe and which generally reflect the maximum allowable percentage of SMYS, are 0.72 for Class 1, 0.60 for Class 2, 0.50 for Class 3, and 0.40 for Class 4. Pipelines are designed based on population along their route, and thus class location. 

CONTINUING SURVEILLANCE

MAXIMUM ALLOWABLE OPERATING PRESSURE: STEEL OR PLASTIC PIPELINES

EXTERNAL CORROSION CONTROL: BURIED OR SUBMERGED PIPELINES AFTER JULY 31, 1971

EXTERNAL CORROSION CONTROL: BURIED OR SUBMERGED PIPELINES BEFORE AUGUST 1, 1971

EXTERNAL CORROSION CONTROL: EXAMINATION OF BURIED PIPE WHEN EXPOSED

EXTERNAL CORROSION CONTROL: PROTECTIVE COATING

EXTERNAL CORROSION CONTROL: CATHODIC PROTECTION

CRITERA FOR CATHODIC PROTECTION AND DETERMINATION OF MEASUREMENTS

EXTERNAL CORROSION CONTROL: MONITORING AND REMEDIATION

EXTERNAL CORROSION CONTROL: ELECTRICAL ISOLATION

EXTERNAL CORROSION CONTROL: TEST STATIONS

EXTERNAL CORROSION CONTROL: TEST LEADS

EXTERNAL CORROSION CONTROL: INTERFERENCE CURRENTS

INTERNAL CORROSION CONTROL: GENERAL

INTERNAL CORROSION CONTROL: MONITORING

INTERNAL CORROSION CONTROL: ONSHORE TRANSMISSION MONITORING AND MITIGATION

ATMOSPHERIC CORROSION CONTROL: GENERAL

ATMOSPHERIC CORROSION CONTROL: MONITORING

REMEDIAL MEASURES: GENERAL

REMEDIAL MEASURES: TRANSMISSION LINES

REMEDIAL MEASURES: DISTRIBUTION INES (OTHER THAN CAST IRON)

DIRECT ASSESSMENT

DEFINITIONS

REQUIREMENTS FOR USING EXTERNAL CORROSION DIRECT ASSESSMENT (ECDS)

REQUIREMENTS FOR USIN INTERNAL CORROSION DIRECT ASSESSMENT (ICDA)

REQUIREMENTS FOR USING DIRECT ASSESSMENT FOR STRESS CORROSION CRACKING

CORROSION CONTROL RECORDS

IN-LINE INSPECTION OF PIPELINES