GLOSSARY PRV. (See Pressure Relief Valve).
Public Information Officer. Point of contact for the media, or other organizations seeking information directly from the incident or event. Member of the Command Staff.
Public Protective Actions (PPA). The strategy used by the Incident Commander to protect the general population from the hazardous mate- rial by implementing a strategy of either (1) Protecting-in-Place, (2) Evacuation, or (3) a combination of Protection-In-Place and Evac- uation. This strategy is usually implemented after the IC has established an isolation perime- ter and defined the Hazard Control Zones for emergency responders.
Pump Stations. Pipeline facilities with com- pressors that are used to boost the pressure on liquid pipelines that is lost as a result of friction loss.
R
Refined Products. Liquid petroleum products produced through the refining process. Exam- ples include gasoline, aviation gasoline, jet fuels and distillates, such as home heating and diesel fuels.
Regulator Stations. Control the gas pressure for major sections of the natural gas distribu- tion system. These stations monitor the flow of natural gas and can control the pressure in major sections of the system. May also be re- ferred to as limiting stations.
Rehabilitation (Rehab). Process of providing for EMS support, treatment and monitoring, food and fluid replenishment, mental rest and relief from extreme environmental conditions associated with a hazmat incident. May func- tion as either a sector or group within the In- cident Management System.
Reid Vapor Pressure (RVP). The rate at which vapors are given off from a petroleum liquid. It is commonly used within the pipeline indus- try when discussing winter and summer gaso- line blends.
Reportable Quantity (RQ). Indicates the ma- terial is a hazardous substance by the EPA. The letters “RQ” (reportable quantity) must be shown either before or after the basic shipping description entries. This designation indicates that any leakage of the substance above its RQ value must be reported to the proper agencies (e.g., National Response Center). Regardless of which agencies are involved, the legal respon- sibility for notification still remains with the spiller.
Resource Conservation and Recovery Act (RCRA). Law which establishes the regulatory framework for the proper management and disposal of all hazardous wastes, including treatment, storage and disposal facilities. It also establishes installation, leak prevention and notification requirements for underground storage tanks.
Respiratory Protection. Equipment designed to protect the wearer from the inhalation of contaminants. Respiratory protection includes positive-pressure self-contained breathing ap- paratus (SCBA), positive-pressure airline res- pirators (SAR's), and air purifying respirators.
Response. That portion of incident manage- ment in which personnel are involved in con- trolling (offensively or defensively) a hazmat incident. The activities in the response portion of a hazmat incident include analyzing the in- cident, planning the response, implementing the planned response, and evaluating progress.
Responsible Party (RP). A legally recognized entity (e.g., person, corporation, business or partnership, etc.) that has a legally recognized status of financial accountability and liability for actions necessary to abate and mitigate ad- verse environmental and human health and safety impacts resulting from a non-permitted release or discharge of a hazardous material. the person or agency found legally accountable for the clean-up of an incident.
Retention. A physical method of confinement by which a liquid is temporarily contained in an area where it can be absorbed, neutralized, or picked up for proper disposal. Retention
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