US CBP (Custom & Border Protection) (360) Washington State Patrol (360) or 911 PHCC (Provincial Highway Conditions Centre) (604) RCMP (Royal Canadian Mounted Police) (604) or 911 CBSA (Canadian Border Services Agency) (604) MOT District Manager of Transportation (604) Note: This communication flow applies to an incident at the Canada/US border crossing, where CBSA elects to close the border crossing: 1)CBSA advises US CBP 2)CBSA contacts BC MoT’s PHCC and RCMP US CBP contacts WSDOT TMC and WS Patrol 3)MoT’s PHCC informs BC MoT’s District Manager and dispatches maintenance contractors if required MoT’s PHCC proceeds with ATIS actions to advise B.C. public WSDOT TMC dispatches Area 1 Maintenance and Incident Response Team if required WSDOT TMC proceeds with ATIS actions to advise W.S. public 4)On-going status update regarding the closure: MoT’s PHCC contacts WSDOT TMC WS Patrol contacts WSDOT TMC * For an incident at the US border crossing, similar procedure but with step 1 becomes US CBP’s responsibility to initiate the process WSDOT TMC (Traffic Management Center) (206) Area 1 Maintenance and Incident Response Team (360) Maintenance Contractors (604) ATIS actions to advise B.C. public: - CMS (Changeable Message Signs) - Drive BC -Border ATIS - Regional ATIS - Media ATIS actions to advise W.S. public: - CMS(Changeable Message Signs) - WSDOT Internet Site -Highway Advisory Radio Call System - Public Affairs Media alerts 4

ATIS actions to advise W.S. public: - CMS(Changeable Message Signs) - WSDOT Internet Site -Highway Advisory Radio Call System - Public Affairs Media alerts 1 US CBP (Custom & Border Protection) (360) Washington State Patrol (360) or 911 PHCC (Provincial Highway Conditions Centre) (604) RCMP (Royal Canadian Mounted Police) (604) or 911 CBSA (Canadian Border Services Agency) (604) MOT District Manager of Transportation (604) WSDOT TMC (Traffic Management Center) (206) Note: This communication flow applies to emergency highway closure on a B.C. highway leading to the US Border, located south of Highway 10. Either RCMP or MOT District Office would initiate the process: 1)RCMP or MOT District Office advise MoT’s PHCC 2)MoT’s PHCC contacts CBSA MoT’s PHCC proceeds with ATIS actions to advise B.C. public 3)CBSA contacts US CBP MoT’s PHCC dispatches maintenance contractors if required MoT’s PHCC contacts WSDOT TMC 4)WSDOT TMC dispatches Area 1 Maintenance team only if necessary WSDOT TMC calls WS Patrol WSDOT TMC proceeds with ATIS actions to advise W.S. public * Once the RCMP or Maintenance Contractors confirm that the incident is clear, MoT’s PHCC is responsible for notifying WSDOT TMC and CBSA and proceed with steps 2, 3 and 4 back to the normal status. 2 Area 1 Maintenance (360) Maintenance Contractors (604) ATIS actions to advise B.C. public: - CMS (Changeable Message Signs) - Drive BC -Border ATIS - Regional ATIS - Media

Area 1 Maintenance and Incident Response Team (360) ATIS actions to advise W.S. public: - CMS(Changeable Message Signs) - WSDOT Internet Site -Highway Advisory Radio Call System - Public Affairs Media alerts US CBP (Custom & Border Protection) (360) WSDOT TMC (Traffic Management Center) (206) Washington State Patrol (360) or 911 PHCC (Provincial Highway Conditions Centre) (604) RCMP (Royal Canadian Mounted Police) (604) or 911 CBSA (Canadian Border Services Agency) (604) MOT District Manager of Transportation (604) Maintenance Contractors (604) ATIS actions to advise B.C. public: - CMS (Changeable Message Signs) - Drive BC -Border ATIS - Regional ATIS - Media Note: This communication flow applies to emergency highway closure on SR’s leading to the Canadian Border, located on I5 or SR543 north of Bellingham, on SR539 or SR9 north of SR546 where WS Patrol initiates the process: 1)WS Patrol advises WSDOT TMC 2)WSDOT TMC contacts US CBP WSDOT TMC proceeds with ATIS actions to advise W.S. public 3)US CBP contacts CBSA WSDOT TMC contacts MoT’s PHCC WSDOT TMC dispatches Area 1 Maintenance and Incident Response Team if required 4)MoT’s PHCC contacts MoT District Office MoT’s PHCC dispatches maintenance contractors only if it is necessary MoT’s PHCC calls RCMP only if security deem necessary MoT’s PHCC proceeds with ATIS actions to advise B.C. public * Once the WS Patrol confirms that the incident is clear, WSDOT TMC is responsible for notifying MoT’s PHCC and US CBP and proceed with steps 2, 3 and 4 back to the normal status.