(1) Except as specified in subsection (2) of this section, light bulbs must be shielded, coated, or otherwise shatter-resistant in areas where there is exposed food, clean equipment, utensils, and linens, or unwrapped single-service and single-use articles.

(2) Shielded, coated, or otherwise shatter-resistant bulbs need not be used in areas used only for storing food in unopened packages if:

(a) The integrity of the packages cannot be affected by broken glass falling into them; and

(b) The packages are capable of being cleaned of debris from broken bulbs before the packages are opened.

(3) An infrared or other heat lamp must be protected against breakage by a shield surrounding and extending beyond the bulb so that only the face of the bulb is exposed.