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License

Licensing for the repository code and data are described below.

Code

Code in this repository is licensed under the GNU General Public License v3.0 (GPL-3.0).

You may use, share, and adapt all code, provided that you give appropriate credit and distribute any derivative work under the same license.

Please cite the paper and the repository:

Bialek-Gregory, Sylwia, Jack Gregory, Bridget Pals, and Richard Revesz. Forthcoming.
"Still your grandfather’s boiler: Estimating the effects of the Clean Air Act’s grandfathering provisions."
Journal of the Association of Environmental and Resource Economists.

Bialek-Gregory, Sylwia, Jack Gregory, Bridget Pals, and Richard Revesz. Forthcoming.
Grandfathering. Version 4.0. GitHub repository. Available at https://github.com/jack-gregory/Grandfathering.

Data

The following datasets are licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0):

  • State emission regulations $\longrightarrow$ so2_regulations_by_state_1976_to_2019.xlsx and data/regs/indiana.xlsx
  • New Source Review grandfathering status $\longrightarrow$ data/regs/gf_status_born_around_1978.xlsx
  • County attainment status 1978--1990 $\longrightarrow$ data/epa/phistory_1978_1990.csv

You may use, share, and adapt this data for non-commercial purposes, provided that you give appropriate credit.

Please cite the paper and the repository as above.

All other data are sourced from the U.S. federal government under the public domain. Further details can be found here: U.S. Federal Government Copyright.

As such, these data are licensed under the Creative Commons Zero (CC0) License.

You may use, share, and adapt this data without restriction. Formal attribution is not legally required, but citation is encouraged.

Additional details by agency are provided below.

Energy Information Administration (EIA)

U.S. government publications are in the public domain and are not subject to copyright protection. You may use and/or distribute any EIA data, files, databases, reports, graphs, charts, and other online information products.

See: EIA Data Policy

Environmental Protection Agency (EPA)

All EPA-generated data is available to the public, except where restricted by law, regulation, policy, or security requirements.

The EPA Clean Air Markets Division (CAMD), which provides CEMS data, states:

"EPA makes market and emissions data publicly available. EPA does not place any restrictions on the use of data published on this site."

See: EPA Open Data

Census Bureau

All statistical tables and datasets produced by the U.S. Census Bureau are in the public domain and may be freely used.

See:

Bureau of Transportation Statistics (BTS)

The ational Transportation Atlas Database (NTAD) is a work of the U.S. government as defined in 17 U.S.C. § 101 and as such is not protected by any U.S. copyrights. This work is available for unrestricted public use.

See: BTS Open Data