Evaluation Process for No/Minimal Release Scenarios in Biennial Exercises

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Offsite Response Organizations (ORO) can utilize these defined methods to address all applicable exercise demonstration criteria in a No/Minimal Release Scenario (without a general emergency declaration) during a biennial exercise without the need to extend the exercise or conduct additional Out-of-Sequence exercises.

A No/Minimal Release Scenario is required once every eight years for licensees and is an option for OROs once every eight years. If OROs decide not to participate in such an exercise, they must participate in a "traditional" scenario response, involving a General Emergency declaration and a resulting PAR/PAD process. There are currently 32 Demonstration Criteria, of the 32 criteria, 7 apply only to an Ingestion/Post Plume scenario and 1 applies only to a MS-1 Exercise.  That leaves 24 criteria which focus on a radiological release scenario.




Of the 24 plume criteria, 17 are required to be demonstrated biennially at each appropriate location. The 7 not requiring biennial demonstration at each appropriate location (no less than once every eight years) include:

  • Facilities (1.b.1)

  • Implementation of Protective Actions for persons with disabilities and access/functional needs (3.c.1 and 3.c.2)

  • Activation of the Prompt Alert and Notification System (5.a.3)

  • Monitoring, Decontamination and Registration of Evacuees (6.a.1)

  • Monitoring and Decontamination of Emergency Workers and their Equipment and Vehicles (6.b.1)

  • Temporary Care of Evacuees (6.c.1)


Of the 17 biennial criteria, 7 criteria are not impacted by a no/minimal release scenario: 

  • Mobilization (1.a.1)

  • Direction and Control (1.c.1)

  • Communications Equipment (1.d.1)

  • Equipment and Supplies to Support Operations (1.e.1)

  • Activation of the Prompt Alert and Notification Systems (5.a.1 and 5.a.4)

  • Emergency Information and Instructions for the Public and the Media (5.b.1)


The following 10 criteria are impacted by a no/minimal release scenario:

  • Emergency Worker Exposure Control (2.a.1)

  • Dose Assessment & PARS & PADs for the Emergency Event (2.b.1 and 2.b.2)

  • PADs for the Protection of persons with disabilities and those with access/functional needs (2.c.1)

  • Implementation of Emergency Worker Exposure Control (3.a.1)

  • Implementation of KI Decision for Institutionalized Individuals and the Public (3.b.1)

  • Implementation of Traffic and Access Control (3.d.1 and 3.d.2)

  • Plume Phase Field Measurement and Analyses (4.a.2 and 4.a.3)


The following matrix shows how these remaining 10 criteria can be demonstrated.

Last Updated: 
07/24/2014 - 16:00
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