In addition to the State of Kansas licensing requirements, a valid District Fishing Permit shall be required for all persons fishing upon or within any District Facility who are 16 years of age and older, except that residents of Johnson County, Kansas who are 65 years of age and older shall not be required to obtain a District Fishing Permit. Persons who are required to have said Permits shall have them in their possession while engaged in fishing or in possession of fish while within the boundaries of any District Facility.