Any security professional (may include CISOs who don't want to go any further).
In role as a CISO (based on our def'n); has either the CISO Ready Certificate or minimal level of professional experience may chose to go forward for Self Attestation.
In role as a CISO (based on our def'n); and has a Self-Attestation Certificate and may chose to go forward for Accreditation.
In role as a CISO (based on our def'n); but have obtained their Accreditation.