The specific toxicity period would be an improvement, if the application prohibition were mandatory. But highly residual materials should not be applied to any bloom that is attractive to bees, because bees will be visiting and contacting the poison, long before the residual activity ends. This ignores the residual activity of the material and amounts to a recommendation of pesticide misuse. I have also seen enforcement officials evade enforcement action by simply ignoring the residual statement on present bee labels. The label directions should be mandatory and federal.
Most commercial beekeepers are migratory and the season of activity is extremely intense.
When bees are delivered to pollination sites, it is imperative that they not be even one day late, or growers can suffer large losses from pollination deficiency. Beekeepers do not have the luxury of dealing with a maze of local regulations. There should be one unified law that applies to all states. I have had pollination contracts with a single customer that placed bees on sites in two states and multiple counties. In these cases beekeepers usually do not even know where the bees will go until they actually arrive at the central distribution site.