Appliance lamp means any lamp that -
(1) Is specifically designed to operate in a household appliance and has a maximum wattage of 40 watts (including an oven lamp, refrigerator lamp, and vacuum cleaner lamp); and
(2) When sold at retail, is designated and marketed for the intended application, with
(i) The designation on the lamp packaging; and
(ii) Marketing materials that identify the lamp as being for appliance use.
10 CFR § 430.2
For purposes of this part, words shall be defined as provided for in section 321 of the Act and as follows -