cca05646_an_Board_of_Industrial_Hygiene__You_may_do_so_by
[If you decertified] By failing to submit an acceptable worksheet [And you want to reactivate] < 12 months after the end of the cycle [You may do so by] 
Submitting a worksheet for the previous CM cycle. Use a CMW from the ABIH Document Library. Including proof-of-participation records to support that the minimum CM requirements were achieved. After a successful CM audit, paying any unpaid annual fees, late annual fees, a late CM worksheet fee, and reinstatement charge equal to the re­application and exam fees.
Reactivation | American Board of Industrial Hygiene
You may do so by