Michigan Compiled Laws, Chapter 445. Trade and Commerce § 445.314

Sec. 4. (1) A person shall not knowingly advertise the availability of a consumer item for sale at retail at a sale or special price, or as being reduced in price by an amount or proportion, unless the advertisement meets all of the following:

(2) If a person advertises a consumer item at a specific price that is not indicated to be a special, sale, or reduced price, the advertiser shall do 1 of the following:

(3) If an advertisement under this section does not state the quantity of a consumer item available or meet the requirements of subsection (1) or (2)(c), and if the consumer item cannot be sold at the advertised price throughout the advertised period of sale, the advertiser shall make available to the customer a written guarantee to deliver under the advertised conditions the consumer item at a future date stated in the guarantee, or when notified by the advertiser that the item is available. If the advertised consumer item cannot be obtained to satisfy the condition of the guarantee, the advertiser may provide a similar consumer item of equal or greater monetary value.

(4) If an advertiser elects in a written guarantee under subsection (3) to notify a consumer when a consumer item will be available, the notification of availability shall take place within 90 days after the guarantee is given. After the notice of availability is given, the advertiser shall hold the consumer item for delivery to the customer for at least 7 days, except the advertiser is required to hold the consumer item for only 2 days if it is a perishable item.

(5) This section does not apply to baked goods, fresh fruit, or fresh vegetables.