Security Directives and Emergency Amendments

Cybersecurity

October 18, 2022

• Enhancing Rail Cybersecurity - SD 1580-21-01A
• Enhancing Rail Cybersecurity – SD 1580-21-01 (correction memo)
• Enhancing Public Transportation and Passenger Railroad Cybersecurity - SD 1582-21-01A
• Enhancing Public Transportation and Passenger Railroad Cybersecurity-SD 1582-21-01A (correction memo)
• Rail Cybersecurity Mitigation Actions and Testing - SD 1580/82-2022-01
• Rail Cybersecurity Mitigation Actions and Testing - SD 1580/82-2022-01 (correction memo)

July 21, 2022

• Security Directives Pipeline-2021-02C

June 9, 2022

• Enhancing Pipeline Cybersecurity - SD-Pipeline-2021-01B
• Enhancing Rail Cybersecurity - SD 1580-21-01
• Enhancing Public Transportation and Passenger Railroad Cybersecurity - SD 1582-21-01
• Enhancing Surface Transportation Cybersecurity - IC 2021-01
• Pipeline Cybersecurity Mitigation Actions, Contingency Planning, and Testing- SD-Pipline-2021-02B 
• Pipeline - Table of Implementation Timeframes - Attachment 1 to SD-Pipeline-2021-02B

International Travel

December 29, 2021

• Proclamation on Revoking Proclamation 10315
• EA 1546-21-03 Series Cancellation - Security Measures – Coronavirus
• EA 1546-21-03 Series Cancellation - Emergency Amendment
• SD 1544-21-04 Series Cancellation - Security Measures – Coronavirus
• SD 1544-21-04 Series Cancellation - Covered Aircraft Operators

Vaccination Requirements

November 2, 2022

• SD 1544-21-03A.pdf
• EA 1546-21-02A.pdf

November 5, 2021

• SD 1544-21-03

Face Mask Requirements

March 16, 2022

• EA 1546-21-01D
• SD 1542-21-01D
• SD 1544-21-02D
• SD 1582-21-01D

January 19, 2022

• EA 1546-21-01C
• SD 1542-21-01C
• SD 1544-21-02C
• SD 1582-84-21-01C

August 20, 2021

• EA 1546-21-01B
• SD 1542-21-01B
• SD 1544-21-02B
• SD 1582-84-21-01B

April 30, 2021

• EA 1546-21-01A
• SD 1542-21-01A
• SD 1544-21-02A
• SD 1582-84-21-01A

January 31, 2021

• EA 1546-21-01
• SD 1542-21-01
• SD 1544-21-02
• SD 1582/84-21-01