What documentation is required to obtain a B-28/W-28 Certificate of Fitness?

• A. Battery System Training Verification Letter and Employer Recommendation Letter.
• B. Proof of residence.
• C. Medical clearance.
• D. Vehicle registration.

Answer: (A)

The main idea here is that this certificate level is issued based on proof of specialized training and employer support, not simple personal or administrative documents. To get a B-28/W-28 Certificate of Fitness, you must show you completed the required training for working with flammable refrigerants and that your employer confirms you will be performing duties that require this COF. The Battery System Training Verification Letter demonstrates you’ve completed the specific training applicable to the job, while the Employer Recommendation Letter shows your employer endorses your role and the need for this certification. Together, they satisfy the safety and qualification requirements FDNY looks for. Documents like proof of residence, medical clearance, or vehicle registration don’t prove training or employer authorization for this specialized duty, so they aren’t sufficient alone.