About

About Petro Classroom Petro Classroom offers State-Approved Class A/B and C Operator Certification Training. Our compliance training is affordable and convenient and not only meets, but exceeds the training requirements and guidelines established by the EPA. Petro Classroom also offers ICC preparation courses and continuing education credit courses for UST/AST Tank Contractors. Petro Classroom offers State-Approved Class A/B and C Operator Certification Training. Our compliance training is affordable and convenient and not only meets, but exceeds the training requirements and guidelines established by the EPA. Petro Classroom also offers ICC preparation courses and continuing education credit courses for UST/AST Tank Contractors.