An applicant for a residential building inspector certification shall meet one of the following requirements:
1. At least three years experience as a contractor or supervisor for residential or non-residential buildings or structures regulated by the rules of the board;
2. At least three years experience as a skilled tradesman for work subject to inspection under a code adopted for buildings or structures regulated by this code or the OBC;
3. Experience specified in Section 103.3.5(2); or
4. Successful completion of a trainee program pursuant to Section 103.3.12.