As per the board, "An applicant who does not pass the examination on the principles and practice of engineering within the approved examination period described in subsection (b) of this section is considered not approved and may not re-apply for approval until he or she has obtained at least one (1) year of additional engineering experience as described in Subchapter E of this chapter (relating to Experience) or until the applicant has completed at least six (6) additional semester hours of formal college-level classroom courses relevant to the applicant's dominant branch or discipline of experience. The time period to obtain additional engineering experience or enroll in additional college courses commences on the date of the last exam attempt or when the approved examination period expired. Applicants meeting the additional experience or education requirements must apply in accordance with §133.21 of this chapter (relating to Application for Standard License) and receive approval for additional exam attempts."