Corrosion control overview.

(a)Subject to paragraph (b) of this section, components may not be constructed, repaired, replaced, or significantly altered until a person qualified under § 193.2707(c) reviews the applicable design drawings and materials specifications from a corrosion control viewpoint and determines that the materials involved will not impair the safety or reliability of the component or any associated components.#

(b)The repair, replacement, or significant alteration of components must be reviewed only if the action to be taken—#

(1)Involves a change in the original materials specified;#

(2)Is due to a failure caused by corrosion; or#

(3)Is occasioned by inspection revealing a significant deterioration of the component due to corrosion.#