# National Natural Landmarks Program
> **National Park Service** · Final rule. · Published 1999-05-12 · Effective 1999-06-11 · 64 FR 25708
## Document
- **Document number:** 99-9762
- **Category:** park-regulation
- **Sub-agency:** National Park Service
- **Federal Register citation:** 64 FR 25708
- **CFR reference:** 36 CFR 62
- **Publication date:** 1999-05-12
- **Effective date:** 1999-06-11
## Abstract

This final rule revises the current regulations for the National Natural Landmarks (NNL) Program. These revisions ensure that owners of Potential National Natural Landmarks (PNNL) under consideration for possible national natural landmark designation are notified well in advance of such consideration and have the opportunity to comment on the proposals; that the National Park System Advisory Board reviews all future national natural landmark nominations and provides recommendations to the Secretary of the Interior about their qualifications for designation; and land is not included within an area designated by the Secretary if a private property owner objects to such a designation for his or her portion.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/05/12/99-9762/national-natural-landmarks-program)
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