https://19january2021snapshot.epa.gov/tsca-import-export-requirements/tsca-section-13-import-compliance-checklist_.html monthly 1.00 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/tsca-requirements-importing-chemicals_.html monthly 0.80 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/tsca-section-6-importexport-requirements-specific-chemicals_.html monthly 0.80 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/basic-information-tsca-import-export-requirements_.html monthly 0.80 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/chemicals-subject-tsca-section-12b-export-notification-0_.html monthly 0.80 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/tsca-requirements-exporting-chemicals_.html monthly 0.80 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/chemicals-subject-tsca-section-12b-export-notification-requirements_.html monthly 0.80 https://19january2021snapshot.epa.gov/tsca-import-export-requirements/forms/contact-us-about-tsca-import-export-requirements_.html monthly 0.80