The director may promulgate regulations consistent with this chapter guarding against personal injuries in the assembly, disassembly, and use of amusement devices at carnivals, fairs, and amusement parks to persons employed at or to persons attending the carnivals, fairs, and amusement parks and regarding enforcement of any other provision of this chapter. The director shall promulgate regulations to charge and collect reasonable fees for permits and for inspections and any other activity under this chapter as considered necessary by the director for the proper enforcement of this chapter. Fees may be set by regulation not more than once each year.