| State Projects | OCLC Code |
|---|---|
| Alabama | CPN |
| Alaska | ANE |
| Arizona | ANN |
| Arkansas | ANU |
| California | CNK |
| Colorado | CNQ |
| Connecticut | CNW |
| Delaware | DEX |
| Florida | FND |
| Georgia | NLG |
| Hawaii | HWN |
| Idaho | NVV |
| Illinois | NVF |
| Indiana | NPI |
| Iowa | INP |
| Kansas | KPN |
| Kentucky | KNP |
| Louisiana | LNP |
| Maine | MBN |
| Maryland | MFN |
| Massachusetts | MBN |
| Michigan | MHN |
| Minnesota | MN# |
| Mississippi | MSJ |
| Missouri | MQN |
| Montana | MTL |
| Nebraska | NVG |
| Nevada | NNX |
| New Hampshire | NVH |
| New Jersey | NJW |
| New Mexico | NVM |
| New York | NYS |
| North Carolina | NVJ |
| North Dakota | NOP |
| Ohio | ONP |
| Oklahoma | OBN |
| Oregon | OCN |
| Pennsylvania | NPH |
| Puerto Rico | PNN |
| Rhode Island | RHA |
| South Carolina | SVN |
| South Dakota | SXN |
| Tennessee | TGN |
| Texas | PPM |
| U.S. Virgin Islands | NVI |
| Utah | UNP |
| Vermont | NVN |
| Virginia | NVK |
| Washington | SLZ |
| Washington, D.C. | DCN |
| West Virginia | WVC |
| Wisconsin | NPV |
| Wyoming | NVO |
| Repository Projects | OCLC Code | NUC Code |
|---|---|---|
| American Antiquarian Society | NPX | MWA |
| Center for Research Libraries | NPW | ICRL |
| Kansas State Historical Society | NPT | KHi |
| Library of Congress | DLC | DLC |
| New-York Historical Society | NPU | NHi |
| New York Public Library | YOX | NN |
| State Historical Society of Wisconsin | NPV | WHi |
| Western Reserve Historical Society | NPY | NPY |
