After the railroad's inspection, testing, and maintenance program is approved by FRA pursuant to the requirements and procedures set forth in § 299.713, the railroad shall adopt and comply with the program, and shall perform—

(a) All inspections and tests described in the program in accordance with the procedures and criteria that the railroad identified as safety-critical; and

(b) All maintenance tasks and procedures described in the program in accordance with the procedures and intervals that the railroad identified as safety-critical.