Which of the following is NOT required in the application for the dental hygiene exam?

In the context of the application process for the dental hygiene exam in Washington State, the correct choice is that proof of a high school diploma is not a requirement. Dental hygiene programs typically require candidates to have completed certain educational prerequisites, usually at the post-secondary level, and therefore the requirement focuses more on the completion of accredited dental hygiene training rather than direct proof of high school graduation.

In contrast, providing a photo ID is essential for identification purposes during the examination process, ensuring the integrity and security of the exam. A notarized passing score of the board would be required to verify that the candidate has met the necessary licensing standards set forth by the regulatory body. Similarly, proof of transcripts is crucial as it documents the completion of the required educational credits and curricula specific to dental hygiene, demonstrating that the candidate has the necessary academic background to sit for the exam. Thus, these elements are critical for validating a candidate's eligibility, unlike the high school diploma requirement.