1. A person shall not engage in the practice of ophthalmic dispensing or manage an optical establishment without holding a valid, active license issued as provided by this chapter.
2. If an optical establishment is open to the public at any time during which no licensed dispensing optician is physically present at the optical establishment, the optical establishment must display a clear and conspicuous sign indicating that a licensed dispensing optician is not present and that no services requiring a licensed dispensing optician may be performed at the optical establishment without a licensed dispensing optician present.