; and (B) ensure a permanent end to livestock grazing on the grazing allotment covered by the grazing permit or lease. (b) Waiver of Grazing Permit or Lease on Common Allotments (1) In general If a grazing allotment covered by a grazing permit or lease that is waived under subsection (a) is also covered by another grazing permit or lease that is not waived, the Secretary shall reduce the level of commercial livestock grazing on the grazing allotment to reflect the waiver. (2) Authorized level To ensure that there is a permanent reduction in the level of livestock grazing on the land covered by the grazing permit or lease waived under subsection (a), the Secretary shall not allow grazing to exceed the level established under paragraph (1). (c) Limitation The Secretaries shall accept not more than 100 grazing permits and leases, in the aggregate, per year under this section on a first come, first served basis. 5. Effect of waiver of grazing permit or lease (a) Effect on range developments A permittee or lessee who waives a grazing permit or lease to the Secretary under section 4 shall be deemed to have waived any claim to all range developments on the associated grazing allotment, notwithstanding any other provision of law. (b) Securing retired allotments against unauthorized use The Secretary shall ensure that grazing allotments retired from grazing under this Act are rendered reasonably secure from trespass grazing by domestic livestock. (c) Relation to other authority Nothing in this Act shall be construed to affect the Secretary’s authority to modify or terminate grazing permits or leases in accordance with other law. (d) Relation to valid existing rights Nothing in this Act affects the allocation, ownership, interest, or control, in existence on the date of the enactment of this Act, of any water, water right, or any other valid existing right held by the United States, Indian tribe, State, county, municipality or private individual, partnership or corporation.