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Spills photo identifier

Spills Program

Class 1 Facilities

Class 1 Facilities are large, fixed shore-side facilities such as refineries and refueling terminals. This definition includes facilities that transfer to or from tank vessels and pipelines.

View an interactive map of oil transfer facilities in Washington.

Prevention Planning Oil Transfer Requirements Operations Manual Inspections Traning & Certification Contingency Plans

Prevention Planning

Class 1 oil handling facilities must prepare oil spill prevention plans. The plans describe each facility’s evaluation their oil handling equipment, maintenance, procedures and operator training to:

  • Ensure the major oil handling equipment and technology meet or exceed the facility design standards, in four areas: aboveground storage tanks, secondary containment, transfer pipelines (dock to storage), and transmission pipelines transfers.
  • Evaluate the facility for oil spill risks, and develop a plan to minimize or eliminate those risks.

See WAC 173-180-600 for more information.

Oil Transfer Requirements

Oil transfer requirements refer to the procedures and equipment necessary for safe oil transfers.

Operations Manual

The Operations Manual refers to the guidelines, procedures, and equipment references that facility personnel may need to use during normal operations and how to troubleshoot issues when problems may occur. Here is an operations manual review guide for Class 1 & 2 Facilities.

Safe and Effective Threshold Values
These rules require delivering facility owners or operators to determine the “threshold values” for sea and wave conditions, wind speed, current velocity, and any other pertinent conditions, beyond which they believe pre-booming is unsafe and/or ineffective for each location the facility conducts rate A transfers.


Ecology inspects each Class 1 facility for compliance with their prevention plan, operations manual, training and certification program, and facility design standards. Inspections typically include records review for storage tank and transfer pipeline inspection and maintenance, and physical review of dock operations, boom maintenance and secondary containment for storage tanks.

Training and Certification

The training and certification program refers to facility-developed criteria for proper training of personnel for safe facility operations. Refer to the Class 1 facility oil-handling training and certification guidance document for more information.

Contingency Plans

Each company is required to develop, maintain, and practice their contingency plan. Included in a contingency plan is a planning standard spreadsheet. All plans are reviewed and approved by Ecology on a five-year cycle. See WAC 173-182-350 for more information.

Facilities and covered vessels are required under federal standards to participate in the National Preparedness and Response Program drill program (PREP). Under state rules you must demonstrate your ability to effectively implement your plan in an event of a spill.

Regional Office Contacts

  • Northwest Regional Office: (425) 649-7000
  • Bellingham Field Office: (360) 715-5200
  • Southwest Region/Ecology Headquarters: (360) 407-7455
  • Vancouver Field Office: (360) 690-7171