Unofficial preparation: This article explains public information and original practice strategies. It does not contain secure test material and is not official California POST guidance.

Identify the purpose of your study

Are you preparing for an aptitude test, an interview, or a training assignment? Each has a different objective. If the agency gives a study guide, follow it. If it does not ask for operational codes, memorizing a long list may displace more useful preparation in reading, listening, or accurate data entry.

Avoid importing assumptions

A phrase or code used in one place may not mean the same thing elsewhere. An unofficial list can also be outdated or incomplete. Do not claim procedural knowledge in an interview based on an internet reference. Ask which terminology, if any, candidates are expected to know before appointment.

A fictional exercise may supply its own code or priority rules. Use those rules for that exercise only. They are not a guide for actual emergencies or a substitute for local instruction.

Build transferable preparation

Practice distinguishing similar characters, repeating information accurately, and explaining a situation concisely. Those skills remain useful even if local terminology changes. You can also rehearse how you learn a new procedure and confirm that you understand it.

  • Read the agency's test notice.
  • Use the official public preparation material.
  • Check unfamiliar terms with the recruiting contact.
  • Leave operational decisions to trained staff and approved procedures.

Wait for an approved training source

After appointment, ask which reference is current and how changes are communicated. A personally memorized list can become a liability if you trust it more than the approved material. Treat correction as part of learning rather than evidence that your previous preparation was wasted.

Turn research into preparation

Train for each competitive stage

Choose the part of the hiring path that needs your attention today. Every tool is free, original, and available without creating an account.

Common questions

Should You Learn Police Radio Codes Before Applying for Dispatch? FAQ

Do I need to memorize ten-codes for the California POST test?

Use POST's public examinee guide for the actual test scope. It is an aptitude assessment, and a generic radio-code list should not be treated as its syllabus.

Verify with the source

Official sources and further reading

Public sources reviewed October 9, 2026. These sources establish the relevant occupation, selection, or training context; the checklists and examples are original applicant guidance, not agency policy. Confirm employer-specific details with the hiring agency.