1. The division shall determine the form of the license.

2. The license shall be posted at all times in a conspicuous place in the principal place of business of the licensee. Upon the issuance of a license, a pocket card of such size, design, and content as determined by the division shall be issued without charge to each licensee. Such card shall be evidence that the licensee is licensed under sections 324.1100 to 324.1148. When any person to whom a card is issued terminates such person’s position, office, or association with the licensee, the card shall be surrendered to the licensee and within five days thereafter shall be mailed or delivered by the licensee to the board for cancellation. Within thirty days after any change of address, a licensee shall notify the board of the address change. The principal place of business may be at a residence or at a business address, but it shall be the place at which the licensee maintains a permanent office.