| http://www.w3.org/ns/prov#value | - Continuation of existing visitor services Notwithstanding any other provision of law, the Secretary, under such terms and conditions as he determines are reasonable, shall permit any persons who, on or before January 1, 1979, were engaged in adequately providing any type of visitor service within any area established as or added to a conservation system unit to continue providing such type of serv
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