No violation of § 424.1 shall be found if:
(a) The advertised products were ordered in adequate time for delivery in quantities sufficient to meet reasonably anticipated demand;(b) The food retailer offers a "raincheck" for the advertised products;(c) The food retailer offers at the advertised price or at a comparable price reduction a similar product that is at least comparable in value to the advertised product; or(d) The food retailer offers other compensation at least equal to the advertised value.54 FR 35467, Aug. 28, 1989, as amended at 79 FR 70056, Nov. 25, 2014