# Cathodic protection

- **operation:** document
- **citation:** RCSA § 16-280b-A50
- **title:** Cathodic protection
- **source type:** regulation
- **agency:** Connecticut Public Utilities Regulatory Authority
- **status:** current
- **official:** true
- **published on:** 2025-06-11
- **effective on:** 2025-06-11
- **summary:** In accordance with Appendix D to 49 CFR 192, as amended from time to time: (1) only depolarized voltages acquired during the previous 5 years may be used to demonstrate a 100-millivolt shift under section I.A.3; and (2) determination of the voltage measurement in section II shall be made in accordance with one of the f
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**body:**

In accordance with Appendix D to 49 CFR 192, as amended from time to time: (1) only depolarized voltages acquired during the previous 5 years may be used to demonstrate a 100-millivolt shift under section I.A.3; and (2) determination of the voltage measurement in section II shall be made in accordance with one of the following: (A) for impressed current systems: (i) interrupting the current and measuring the instant-off potential; or (ii) using engineered coupons; or (B) for galvanic anode systems, the reading shall be taken as close to the Pipeline as practical. 18
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