I looked at doing that and I printed the PDF and as I read it you have to be in the safety business (work in a safety dept or have a degree in safety before you can do that). I could be in error though.
LC
To be eligible to sit for the exam all candidates must submit documentation of 40 hours of electrical safety training from one or more of the following sources in the last three years: NFPA, IBEW, IEC, or other approved program. Additional qualifications for eligibility depend on job classification:
Electricians – proof of license and documentation of 8,000 hours of work experience (in lieu of license must submit additional documentation)
Electrical Engineers – proof of PE license,
or must show proof of degree from accredited university and verified work experience (associates degree requires 4 years of documented field work, bachelor’s degree 2 years of field work).
Other – proof of
CSP and documentation of 3 years of experience with electrical power systems,
or bachelor’s degree in engineering/technology or other related field and 3 years of experience with electrical power systems,
or Facilities/Plant/Factory Safety Professional with 10 years of work experience with electrical power systems.
http://www.nfpa.org/~/media/Files/Training/certification/CESCP/CESCPHndbk.pdf
I think if you can get your employer to pay for the seminars/conferences required for recertification it would totally be worth the certification fee.