(1) A person applying for an ignition interlock device tolling medical exemption under RCW 46.20.720 (3)(e) must obtain and submit a statement on a department prescribed form certifying the person's condition and have the form signed by a licensed physician or other proper authority designated by the department.

(2) The department may approve or deny the exemption based on the department's evaluation.

(3) The medical exemption decision is for the confidential use of the director, the chief of the Washington state patrol, and any other public officials designated by law. It is exempt from public inspection and copying notwithstanding chapter 42.56 RCW.

(4) The medical exemption shall only be effective during an ignition interlock device period of restriction under RCW 46.20.720 (1)(c) and (d).

(5) Exemptions shall not waive the ignition interlock device duration of restriction.

(6) A person with a medical exemption shall not be eligible to drive, apply for an ignition interlock license, or receive day-for-day credit.

(7) The medical exemption shall be valid for not more than three hundred sixty-six days. For renewal of the medical exemption, a person must submit a new form as outlined in subsection (1) of this section.

(8) The department may invalidate a medical exemption if a person has an ignition interlock device installed.

(9) The department may develop procedures to certify that a person with an ignition interlock device tolling medical exemption meets the removal requirements as outlined in RCW 46.20.710(4).

(10) The department may invalidate the medical exemption and require an application for a new medical exemption if the person's license is subsequently suspended, revoked or canceled for a different violation.