(a) A former Board member, Board employee or DOT employee with outstanding scientific or technological qualifications who is disqualified from acting in a representative capacity under the provisions of § 300.13 or § 300.14 of this chapter may nevertheless participate in a proceeding in a scientific or technological field pursuant to the terms of a certificate issued in compliance with the proviso following 18 U.S.C. 207 (a) and (b).

(b) An employee who believes his or her prior employment relationships will not affect the integrity of his or her services may request that the prohibition of § 300.9 or § 300.10 of this chapter be waived by the appropriate Ethics Counselor under 49 CFR 99.735-71.