The regulations require that persons who recover regulated refrigerants from salvaged items must themselves hold the appropriate certification for the type of equipment being recovered, or be directly supervised by someone who is properly certified. Persons who salvage or dismantle entire units of refrigeration equipment must register annually with the DNR (Form 4500-129), certifying that they are using approved equipment to recover any remaining refrigerants and that persons using this equipment are properly qualified. Refrigeration equipment salvagers may make arrangements for someone else to perform the refrigerant recovery, but still must register with DNR (unless that facility is already registered). The "subcontractor" must use approved recovery equipment operated by properly qualified operators, and records of recovery activities must be kept. A description of this arrangement must be included in the salvager's registration.The applicant must submit (1) information on approved recovery equipment and qualified equipment operators and (2) a check for the appropriate fee along with Form 4500-129. Duration: One year, expires at end of calendar quarter one year after issuance (March 31, June 30, September 30, December 31) and must be renewed annually. Fees: Annual registration fee is $250 or $125 if facility is already registered with the Department of Agriculture, Trade and Consumer Protection (to service vehicle air-conditioners) or Department of Commerce (to service stationary equipment) and salvage is a minor activity incidental to providing repair services. Other Agencies Involved: The Department of Agriculture, Trade and Consumer Protection (DATCP) approves programs to certify individuals recovering refrigerants from vehicle air-conditioners. The Department of Commerce (DOC) provides credentials for individuals recovering refrigerants from stationary refrigeration equipment. Contact the department for more information.