1. The director of the department of health and senior services shall approve the form and size of labels, the fabric of which the labels are made and the wording and statements on such labels, provided for in sections 421.005 to 421.038.

2. Labels required pursuant to sections 421.005 to 421.038 shall be securely attached to the article of bedding or such filling material at the site of the manufacturer, in a conspicuous place where the label can be easily examined.

3. Labels required by sections 421.005 to 421.038 shall have printing only on one side. No advertising matter may be placed on any label or any other printed matter not required by the provisions of sections 421.005 to 421.038.