Pennsylvania once made National Register of Historic Places nomination forms available for nearly all of its NRHP sites, using the "ARCH" system website. After a notice was posted on the website that it would be taken down at the end of 2009 and replaced by the "CRGIS" system, there were fears that not all forms would be available, so some several Wikipedians agreed to download all of the state's nomination forms, county by county. This page lists the downloaders by what they downloaded, so that someone needing a copy of a nomination form can know whom to contact for help. Those who downloaded forms were Ruhrfisch (26 complete counties), Pubdog (18 complete counties), Nyttend (13 complete counties), Niagara (7 complete counties), and Smallbones (0 complete counties). Three of the state's counties were treated differently: Cameron, Chester, and Philadelphia. There are no listings in Cameron County, so there was nothing to download. On the other hand, Philadelphia and Chester counties have abnormally large number of listings; therefore, the downloads for these counties were split among multiple individuals — Philadelphia alphabetically and Chester by municipality. Separate tables for these two counties appear below the main table.
Please note that "Number of listings" refers to the current number of listings in the county. There are at least four reasons that the number of total forms available for download in a county may not equal this number:
Most sites listed in the last few years do not appear on ARCH
A few sites listed for many years do not appear on ARCH
Some sites listed on ARCH have no forms available for download
A significant number of sites listed on ARCH have multiple forms available for download; for example, a historic district may have separate forms for nomination, nomination continuation, inventory, district map, and USGS map showing the location of the district