When a Pesticide Registrant allows a pesticide product registration to lapse, Pest Control Dealers __________.

The correct answer is that Pest Control Dealers can sell and deliver the pesticide product for two years after a pesticide registrant allows a pesticide product registration to lapse. This provision is in place to provide a transition period during which the dealers can still manage their stock and fulfill any remaining orders or obligations. This allows for a more orderly market and helps prevent sudden disruptions in supply for customers who may still need the product for applications already in progress or planned.

It's essential to recognize that while the registration may have lapsed, the law provides this flexibility to ensure that existing inventory can be utilized rather than wastefully discarded. This two-year period acts as a buffer for both registrants and dealers to address any outstanding inventories or customer needs arising from the lapse in registration.

The other options do not accurately reflect the regulations regarding pesticide product registration lapses. The ability for dealers to promote or sell the product without restrictions does not account for the regulatory oversight that governs pesticide marketing and distribution. Discontinuing sales immediately would not give dealers the time needed to manage their existing stocks effectively. Meanwhile, requiring dealers to inform customers of the lapse could create confusion or unnecessary alarm, and doesn't align with the practical approach to existing inventory management during this transitional period.