Except as otherwise provided in section 1210.5(d) (Standards for certification as a retailer), 1210.6(f) (Standards for certification as an installer), 1210.6(h), 1210.7(f) (Standards for certification as a mechanic), or 1210.20 (Suspension and revocation of certifications), a certification issued by the Department of State shall be valid for a term of two years, and a certification renewed pursuant to section 1210.12 (Renewal of certifications) of this Part shall be valid for a term of two years.