Private Investigator / Maine
2026 data Maine board official source

Maine Private Investigator License Requirements

Compiled from official public sources by the publisher.

Requirements, fees, and renewal timing for this license, sourced from state board records.

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Conducts investigations for private clients and attorneys.

What the Maine data shows for Private Investigators

Maine's path to private investigator licensure runs through 201 hours of approved instruction, 3 years of supervised work experience, and a passing score on State Private Investigator Exam, plus a criminal history screening before applicants younger than 18 can be licensed. Maine folds the credential into its broader occupational licensing statute, which classifies the training track as "Training or Experience".

Budget $59 to get started, plus $58 at each renewal on a 2-year cycle. Continuing education is not a listed requirement for this profession in Maine, so the annualized maintenance burden is lower than in states that mandate ongoing hours.

For private investigators, the reciprocity picture is: Not typically reciprocal — state-specific.

Licensing Ease Score

B-
Licensing Ease Score
65/100
Private Investigator · Maine

A higher score means this specific license is LESS burdensome to obtain and maintain here than the national requirement corpus, based on education hours, fees, continuing education, and experience requirements, not an overall judgment of the profession or the state.

Education & Training B-
201 hours
Documented education/training hours required
Initial Fee A-
$59
One-time application/license fee
Renewal Burden B+
$29/yr
$58 every 2 years
Continuing Education A+
None required
No continuing-education mandate
Experience Required F
3 years
Supervised work experience required before licensure

Licensing Requirements in Maine

Education / Training Hours
Training or Experience
201 hours
Exam Requirement
State Private Investigator Exam
Required
Initial License Fee
$59
Renewal Fee
$58
Renewal Cycle
Every 2 years
Continuing Education
Not required
Criminal History Check
Required
Minimum Age
18 years
Work Experience Required
3 years

Compare & Explore

Compare all states for Private Investigator All Maine licenses
Data sources: NCSL Occupational Licensing Database, Institute for Justice, state licensing boards. Verify current requirements with Maine licensing authorities before making career decisions.

Frequently Asked Questions

What license do I need for Private Investigator in Maine? ▼
Maine's requirements cover 201 hours of education or training, the State Private Investigator Exam exam, and an initial fee of $59. Applicants also go through a criminal background check.
How do I get certified as a Private Investigator in Maine? ▼
Maine licenses private investigators who complete its requirements (201 education hours, 3 years of experience) and a passing exam. Verify the latest details with the Maine licensing board.
Can I transfer my Private Investigator license to Maine from another state? ▼
Here's how reciprocity typically plays out for private investigators: Not typically reciprocal — state-specific. Many occupations are additionally covered by interstate licensing compacts that ease cross-state moves. Check with the Maine licensing board for how this applies to you.
Does Maine require a background check for Private Investigator licensing? ▼
Yes, Maine requires a criminal background check as part of the private investigator licensing process. Disqualifying offenses and review criteria are determined by the state licensing board.

Related Guides

What to do with this private investigator license

Private Investigator in Maine, with a documented reciprocity path, is one requirement row in a private investigator-wide, 50-state comparison.

  • See how Maine's private investigator requirements compare to every other state before relocating. Private Investigator in every state
  • Confirm whether your out-of-state private investigator license transfers under an interstate compact before starting a new application. Reciprocity guide
  • See how Maine's overall licensing burden compares to other states, not just this one profession. Maine overview

Requirements shown are compiled from NCSL and Institute for Justice research; verify current rules with the Maine licensing board before making career decisions.

Source: NCSL Occupational Licensing Database, Institute for Justice License to Work (3rd Ed.), state licensing board websites

According to the National Conference of State Legislatures and the Institute for Justice, the PlainCredential comparison corpus (current as of May 15, 2026) maps 4,947 state licensing requirement records; see the methodology.

Read our methodology - how this data is sourced, computed, and verified.