Several government agencies have posted their contingency shutdown plans online for the public, with details on how many government workers continue to work, along with listings of services still available during the lapse in Federal funding.
Here are some of the contingency plans and agency websites related to trade activities:
The Office of Management and Budget Agency Contingency Plans:
https://www.whitehouse.gov/omb/information-for-agencies/agency-contingency-plans/
Department of Homeland Security, U.S. Customs and Border Protection (CBP) and Transportation Safety Administration (TSA):
Department of Health and Human Services, Food and Drug Administration (FDA):
https://www.hhs.gov/about/budget/fy-2019-hhs-contingency-staffing-plan/index.html
Department of Justice, Alcohol, Tabaco & Firearms (ATF):
https://www.justice.gov/jmd/page/file/1015676/download
Department of Transportation:
https://www.transportation.gov/lapse
U.S. Department of Agriculture:
https://www.usda.gov/shutdownplans
Department of the Treasury, Alcohol and Tobacco Tax and Trade Bureau (TTB):
https://www.treasury.gov/SitePolicies/Documents/TTB-Shutdown-Plan-12062017.pdf
Department of Commerce, Census:
Environmental Protection Agency:
Fish & Wildlife Services:
https://www.doi.gov/sites/doi.gov/files/2018-12-fws-contingency-plan.pdf
National Oceanic and Atmospheric Administration:
https://www.ago.noaa.gov/docs/ago_appropriation_lapse_guidance.pdf
Consumer Product Safety Commission (CPSC):
https://www.cpsc.gov/About-CPSC/Policies-Statements-and-Directives
https://cpsc.gov/s3fs-public/CPSC%20Shutdown%20Directive121818.pdf?82MBPG6JlMosZuiRprvIepb429_yO.YG