People who were previously certified may want to pursue reactivation.

When a former Diplomate is reactivated, BGC will issue a new certificate, certification letter and will publish the person’s name on the public portion of the BGC/ABIH web site.

Reactivated Diplomates will be assigned a new CIH number.

Reactivation Options

If you decertified And you want to reactivate You may do so by
For any reason except an ethics sanction At any time Examination* if you:

  • Submit the CM By Exam form (must be a former CIH certified in the Comprehensive Practice of industrial hygiene)
  • Complete at least 2 hours of ethics training within the previous 60 months
  • Pay re-application ($75) & examination fees ($350)
By Voluntary Surrender or Failing to pay annual fees Before your cycle ends
  • Submitting a written request
  • Paying the annual fees
By Voluntary Surrender < 5 months after your cycle ends
  • Submitting an acceptable worksheet for the previous CM cycle
  • Paying the current annual fees and late CM worksheet fee (if due)
By Voluntary Surrender or by failing to submit an acceptable worksheet After CM cycle ends (requires a 6-month waiting period before reactivating)
  • Submitting an acceptable worksheet for the previous 60 months immediately preceding the reactivation request.  Use a CMW from the ABIH Document Library
  • Must include audit materials
  • Must pay $350 activation fee plus: any annual fees, current, back, and late fees

* Since the Aspects and CAIH examinations have been discontinued, reactivation by exam is not available. These Diplomates must qualify to take the Comprehensive Practice examination by providing a re-application form, supervisor's PRQ covering the last 2 years, documentation showing at least two hours of Ethics training, and pay the fees (re-application fee and the examination) in effect at the time of the request.