I was an ARRL VE years ago. The info about ARRL VEs says that you remain a VE and the only way one will be dropped is loss of license. However, years ago to be a valid VE one would have to have a current date sticker on one's badge. Am I still a VE? Do I need the date sticker?
For general info, check http://www.arrl.org/volunteer-examiners. It will point you to a PDF manual for ARRL VEC.
"Once accredited as an examiner in the ARRL/VEC’s program, your accreditation credentials will be good until your FCC license expires."
"ARRL accreditation renewal is automatic for ARRL VEs who maintain a current address, contact phone number and/or email address on file at the VEC office and have participated at an exam session within the past 5 years. (Emphasis added.) Renewal stickers, extending the ARRL VE’s accreditation expiration date, are issued and should be placed on your credentials. By issuing automatic accreditation renewals, the ARRL/VEC can ensure that the needs of our VEs are met; as well as the amateur radio community. After 5 years of inactivity, your VE accreditation will be placed on hold until you contact the VEC office. Depending on the amount of time that has passed, you may be required to reapply. No one's accreditation will be permanently revoked solely because of his or her inactivity, because many factors can contribute to a VE’s activity level."
If you want to reactivate your credential, contact the VEC office email@example.com or call (860) 594-0300.