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Advance notice of oil transfer

We have requirements for advance notice of oil transfers (ANT) to help prepare for and prevent oil spills to Washington's environment. Our rules establish requirements for bulk oil transfers over water, and for providing notice of crude oil being transported by rail and pipeline through the state.

Advanced notice of oil transport helps us streamline compliance inspections for over-water transfers. It allows local emergency responders to prepare for oil-related incidents from rail and pipeline transport. We provide guidance to regulated businesses and vessels  for submitting advanced notice of oil transport.

Over-water oil transfers

We have requirements for over-water oil transfers, which establish spill prevention and early response standards for facility and vessel operators involved in bulk-oil transfers:

Industry type ANT reporting requirements
Delivering Class 1, 2, or 3 facilities (fixed or mobile) and delivering vessels that transfer more than 100 gallons of bulk oil to a non-recreational vessel or facility. Classes are defined in focus sheet below this form. Must submit notice 24 hours prior to the transfer for facilities and within the timeframe required by the local U.S. Coast Guard Captain of the Port for vessels.
Smaller fueling stations (called Class 4 facilities) that deliver to non-recreational vessels with oil capacity less than 10,500 gallons. Do not submit advance notice. We require biannual reports detailing cumulative amounts of oil transferred by type.
Pipelines transporting crude oil in or through the state. Do not submit advance notice. We require biannual reports detailing cumulative amounts of oil transferred by type.

Oil movement by rail and pipeline

We require facilities in Washington that receive crude oil by rail to submit advance notice for each new shipment scheduled for delivery.

Advance notice should be submitted:

  • Weekly
  • For the upcoming 7-day period
  • Before a crude-by-rail shipment enters the state

Facilities submit notice through our web-based Advance Notice of Transfer (ANT) System, which also includes an interface for emergency response agencies to view rail oil transfer details in advance of the transfer.

Information reported must include:

  • Region of origin of crude oil
  • Railroad route taken to the facility within the state (if known)
  • Scheduled delivery time and volume in barrels of the delivery
  • American Petroleum Institute gravity of the oil

Pipelines transporting crude oil in or through Washington are required to submit biannual reports that provide the volume and state or province of origin of the crude oil. The biannual reports are due on January 31 and July 31 each year.

Submitting advance notice of transfer or biannual reports

Oil transfers over water

The easiest method for submitting notice is to use our web-based system, which satisfies reporting requirements for both Ecology and the U.S. Coast Guard (USCG).

  1. Register through the state's Secure Access Washington (SAW) online system, which ensures protection of proprietary transfer information.
  2. If you've already registered, notice may be submitted and viewed through the ANT system.

Facilities and vessels transferring oil over water may also submit notice by:

Crude oil transported by rail and pipeline ANT system tips

Crude oil movement quarterly reports

On this website every quarter, we publish aggregated information about crude oil transported by rail to facilities in Washington; information on crude oil movement by pipeline; and information on crude oil spilled during transport and delivery for rail and pipeline. In addition, the quarterly reports provide information about the volume of crude oil transported by vessel.