Below is from old annual meeting minutes on the rrtc.net website. I don't know what the procedure was for "renewing" a certification, and the link provided below became a dead end long ago.
Course Renewal Procedure Clarification
2001-07-25: As decided at the 2000 USATF Convention, course renewals are being phased out, although courses certified prior to 2001 are still renewable. Questions have arisen regarding policies for renewal of pre-2001 courses. To eliminate confusion, RRTC Chairman Mike Wickiser has issued a statement and mailed it to all Regional Certifiers, explaining the procedures that Certifiers must follow in renewing courses which are still eligible for renewal:
Course Renewals to be Phased Out
2000-12-01: RRTC decided at the 2000 USATF Convention in Albuquerque, NM to stop allowing renewal of certified courses when they "expire" at the end of 10 years. Instead, 10-year expiration will be regarded as a strict termination of the certification, as it is felt that enough uncertainty creeps into every course to warrant remeasurement after this period of time. In practice, the new policy will not take effect for 10 years, as we will continue to honor the language on current certificates which states "This certification automatically expires ten years after date of issue, although it may be renewed for additional ten-year periods..." However, starting in 2001, newly certified courses will be issued certificates that feature a clearly visible expiration date and do not mention the possibility of renewal. When these certifications expire, they will not be renewable.