Auxiliary Containers; Defines "auxiliary container" and "single-use"; removes obsolete provisions; preempting regulation of auxiliary containers to state; provides exceptions; requires DEP to develop uniform ordinance for use and disposition of single-use, nonrecyclable auxiliary containers; provides requirements for development of such ordinance; requires that sale or distribution of single-use plastic auxiliary containers on lands managed by Division of Recreation & Parks of DEP be eliminated to greatest extent possible; prohibits use, sale, or distribution of certain single-use auxiliary containers on such lands; requires department to develop and make available on its website statewide Marine Debris Reduction Plan; provides requirements for such plan; removes s. 500.90, F.S., relating to regulation of polystyrene products preempted to DACS.