A guaranty under this section may be: A separate guaranty that specifically designates the product, fabric, or related material; or A continuing guaranty that: Is given by a seller to a buyer; Applies to any product, fabric, or related material sold to the buyer; and Is in the form the Department approves. A person may not manufacture, sell, or hold with intent to sell any new or unused product that does not comply with the flammability requirements of this subtitle. A person may not give a false guaranty. This section does not apply to a person who: Receives in good faith a product, fabric, or related material that is covered by a guaranty that is signed by and contains the name and address of the person who manufactured the product, fabric, or related material or from whom it was received; Has not altered the flammability of the product, fabric, or related material covered by the guaranty; and Reasonably and in good faith relies on the guaranty.