; or (B) such person is newly hired by an air carrier as a pilot on or after such date of enactment without credit for prior seniority or prior longevity for benefits or other terms related to length of service prior to the date of rehire under any labor agreement or employment policies of the air carrier. (2) Protection for compliance An action taken in conformance with this section, taken in conformance with a regulation issued to carry out this section, or taken prior to the date of enactment of the Let Experienced Pilots Fly Act in conformance with subsection (d) or (e) of section 121.383 of title 14, Code of Federal Regulations (as in effect before such date), may not serve as a basis for liability or relief in a proceeding, brought under any employment law or regulation, before any court or agency of the United States or of any State or locality. (e) Amendments to labor agreements and benefit plans Any amendment to a labor agreement or benefit plan of an air carrier that is required to conform with the requirements of this section or a regulation issued to carry out this section, and is applicable to pilots represented for collective bargaining, shall be made by agreement of the air carrier and the designated bargaining representative of the pilots of the air carrier. (f) Medical standards and records (1) Medical examinations and standards Except as provided by paragraph (2), a person serving as a pilot for an air carrier engaged in covered operations shall not be subject to different medical standards, or different, greater, or more frequent medical examinations, on account of age unless the Administrator of the Federal Aviation Administration determines (based on data received or studies published after the date of enactment of the Let Experienced Pilots Fly Act ) that different medical standards, or different, greater, or more frequent medical examinations, are needed to ensure an adequate level of safety in flight. (2) Duration of first-class medical certificate No person who has attained 60 years of