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Create a random pool
Last Updated: 09/24/2026

A random pool defines who can be selected, how many tests are needed, and when selections are made. It also keeps every selection made from it.

Before you start

  • If you chose automatic DOT pools in the random service setup, DOT pools are created for you each year; you do not need to create them.
  • Only one active DOT pool is allowed per test type. For non-DOT testing you can create as many pools as you need.

Steps

  1. Choose Random > New Random Pool.
  2. Choose the Pool Type (test type), whether it is a DOT Regulated Pool, and an optional Description.
  3. Enter the Target Percentage (more than 5), Selection Frequency, and the Earliest Selection Date and Latest Selection Date.
  4. Choose the members: employment statuses (non-DOT pools only) and categories. DOT pools include all safety-sensitive employees; drivers are always members.
  5. Choose the options: whether a member can be selected more than once in a period, whether alcohol selections are scheduled with drug selections when possible (alcohol pools), and any additional selections per period.
  6. Review the summary and select Finish.

What happens next

Med-Stop adds the members and makes selections from the earliest selection date. Review the members before the first period. For each option, see Random pool settings.

Do you need more information?

If you need our assistance, or want to know more about Med-Stop, please use our Support contact form, send e-mail to support@med-stop.com or call at 1-(877) 633-3633