Mich. Admin. Code R. 393.5004
Rule 4. An appointing authority may require that a person requesting an accommodation provide reasonable advance notice. A lack of reasonable advance notice of the need for an interpreter may relieve the legal obligation to make timely and appropriate attempts to provide one; but an appointing authoritys refusal to provide a legally required accommodation based only upon a notice requirement greater than what is reasonable under the circumstances is a refusal to provide the accommodation. A determination of reasonableness may, among other factors, include the local availability of interpreters, the frequency with which the appointing authority receives such requests, whether the appointing authority regularly utilizes VRI or an interpreter agency, the nature of the proceedings for which the interpreter is requested, any specific types endorsement or other interpreter expertise needed, the potential for harm if there is delay in the proceeding, and the ability of the D/DB/HH person to have foreseen the need. Notice is always reasonable when provided by a D/DB/HH as soon as a medical, legal, or emergency need is identified.
Mich. Admin. Code R. 393.5004