Every applicant who complies with the provisions of this chapter shall receive from the director under his or her seal a certificate of license entitling him or her to practice optometry in this state. Every person to whom a certificate of license is issued by the department shall keep that certificate displayed in a conspicuous place in the office or place of business where that person practices optometry and, whenever required, shall exhibit the certificate to any authorized representative of the department.
R.I. Gen. Laws § 5-35.1-6