NPS generally receives appropriations in the annual Interior, Environment, and Related Agencies appropriations bill. This report examines trends in the agency's discretionary appropriations over the past decade (FY2009-FY2018) and related issues and congressional actions. It also discusses changes in the size of the National Park System, numbers of recreational visits to the parks, and NPS staffing levels during that period. Excluding supplementals, NPS's FY2018 appropriations were 26.8% higher than FY2009 appropriations in nominal dollars and 10.5% higher in inflation-adjusted dollars. In either case, the main trend was decline in the first part of the decade and increase in the second part. Individual NPS Accounts

During the decade, NPS's appropriations were primarily organized in five accounts that cover basic park operations (Operation of the National Park System, or ONPS, account); construction and repair of infrastructure (Construction account); assistance to state, local, tribal, and private land managers (National Recreation and Preservation account); grants to states and localities for historic preservation (Historic Preservation Fund); and land acquisition by both NPS and the states (Land Acquisition and State Assistance account). With supplemental appropriations excluded, the FY2009 funding was less ($2.132 billion), and by this measure funding for the account increased over the decade in real terms, by 1.3% in inflation-adjusted dollars. Construction Account

The second-largest NPS account, titled Construction, funds new construction projects as well as repairs and improvements to existing facilities, among other activities. Appropriations to the account for the first and last years of the decade (FY2009 and FY2018), along with the appropriation for FY2013, were considerably higher than construction appropriations in intervening years, in all three cases owing to supplemental appropriations related to economic stimulus (FY2009) or hurricane recovery (FY2013 and FY2018). The NR&P account was not affected by supplemental funding during the decade. The account also received some supplemental funding as part of the economic stimulus package in FY2009. With supplementals included, the FY2018 appropriation was 52.4% higher in inflation-adjusted dollars than the FY2009 appropriation, and the account represented 2.6% of the total NPS appropriation in FY2009 and 4.2% in FY2018. Both parts of the account—the funds for NPS land acquisition and for assistance to states—grew over the decade, but growth in the NPS portion was smaller (+9.8% in inflation-adjusted dollars) than in the state portion (+468.6%). Centennial Challenge

The Centennial Challenge account was funded during certain years of the decade (FY2010 and FY2015-FY2018). Conclusion

NPS's appropriations fluctuated over the past decade, and supplemental appropriations notably increased the totals in FY2009, FY2013, and FY2018. Counting the supplementals, the total NPS discretionary appropriation for FY2018 was 5.6% higher than FY2009 in nominal dollars but 8.0% lower in inflation-adjusted dollars. The funding changes took place in the context of a park system of relatively stable size and a staffing level that hovered around 20,000. Although park acreage grew only slightly, 26 units were added to the system during the decade. Visits to the parks generally were higher in the second half of the decade than the first and peaked in 2016 at approximately 331 million visits.
The National Park Service (NPS) generally receives appropriations in the annual Interior, Environment, and Related Agencies appropriations bill. This report examines trends in NPS appropriations over the past decade (FY2009-FY2018), as well as changes during the decade in the size of the National Park System, numbers of recreational visits to the parks, and NPS staffing levels.
NPS's appropriations fluctuated during the decade, mainly declining in the first part of the decade and then increasing during the second part. In the first and last years of the decade (FY2009 and FY2018), as well as in one intervening year (FY2013), appropriations totals were notably increased by supplemental funding. In FY2009, supplemental appropriations for economic stimulus affected NPS accounts for park operations, construction, and historic preservation; in FY2013 and FY2018, supplemental funding for hurricane recovery affected the accounts for construction and historic preservation. With the supplemental appropriations included, the total discretionary appropriation for FY2018 represented an increase (+5.6%) in nominal dollars over the FY2009 total but a decrease (-8.0%) in inflation-adjusted dollars. Excluding supplementals, NPS appropriations increased between FY2009 and FY2018 by 26.8% in nominal dollars and 10.5% in inflation-adjusted dollars.
During this period, NPS's discretionary appropriations were organized primarily in five accounts. A sixth account (Centennial Challenge) was funded only in certain years. Regular appropriations fluctuated over the decade for all the accounts, and the extent to which an account increased or decreased also was affected by supplemental appropriations. With supplementals included, two accounts received more funding in FY2018 than in FY2009 in real (inflation-adjusted) terms, including one account that funds federal land acquisition and outdoor recreation assistance to states and one that provides grants to states and tribes for historic preservation activities. Three other accounts received less funding in FY2018 than in FY2009 in inflation-adjusted dollars—including NPS's largest account, which funds basic park operations, as well as the account that funds construction and major repairs and the account for NPS assistance to nonfederal entities. Excluding supplementals, funding still grew in real terms for the land acquisition and historic preservation accounts, but it also grew for the operations and construction accounts, declining only for assistance to nonfederal entities. The operations and construction accounts are partially used to address NPS's deferred maintenance backlog, which has grown throughout the decade.
The funding changes took place in the context of relative stability in the size of the National Park System, which was about 85 million acres throughout the decade, with slight growth (+0.8%). The total consisted of roughly 80 million acres of federal land, with the remainder nonfederal. Although system acreage remained relatively stable, 26 new units were added to the system during the decade. NPS staffing levels hovered around 20,000 and were highest in the first part of the decade, stemming partly from the economic stimulus measures in FY2009. Visits to the parks increased over the decade, peaking at approximately 331 million visits in 2016.