(a) A person who is otherwise eligible to renew a certificate may renew an unexpired certificate by paying the required renewal fee to the department before the expiration date of the certificate. A person whose certificate has expired may not engage in activities that require a certificate until the certificate has been renewed.
(b) A person whose certificate has been expired for 90 days or less may renew the certificate by paying to the department a renewal fee that is equal to 1-1/2 times the normally required renewal fee.

(c) A person whose certificate has been expired for more than 90 days but less than one year may renew the certificate by paying to the department a renewal fee that is equal to two times the normally required renewal fee.
(d) A person whose certificate has been expired for one year or more may not renew the certificate. The person may obtain a new certificate by complying with the requirements and procedures, including the examination requirements, for obtaining an original certificate.
(e) A person who was certified in this state, moved to another state, and is currently certified and has been in practice in the other state for the two years preceding the date of application may obtain a new certificate without reexamination. The person must pay to the department a fee that is equal to two times the normally required renewal fee for the certificate.
(f) Not later than the 30th day before the date a person’s certificate is scheduled to expire, the department shall send written notice of the impending expiration to the person at the person’s last known address according to the records of the department.