What Is A CGM?

The Short Answer: A CGM Is a Certified Grounds Manager

When people in the landscape and facilities world say "a CGM," they mean a Certified Grounds Manager: a professional who has met an industry-recognized standard for managing the outdoor environment of a facility, campus, park system, or commercial property. On this site the abbreviation refers to that credential and nothing else. Other fields use the same three letters for unrelated things, so if you arrived looking for one of those, this is a different topic entirely.

If you want the same idea framed from other angles, our companion pages cover what CGM is, what CGM stands for, and the meaning of CGM. This article goes a layer deeper: how the credential is earned, what the exam asks of you, and what the process costs in time and money.

Who Awards the Credential

The Certified Grounds Manager program is administered by the Professional Grounds Management Society (PGMS). PGMS publishes a certification handbook that describes eligibility, the application exam, the portfolio stage, and maintenance of the credential. The exam itself is delivered online with an approved proctor.

Because the handbook is the governing document, it is the first thing any serious candidate should read. Some of its annotations date from 2022, and the current PGMS web page does not always match the handbook word for word. For example, the page and the handbook give slightly different ranges for the length of a related slide-based submission (150 to 200 slides on the page versus 125 to 200 in the handbook). When two official sources disagree on a detail, confirm it with PGMS before you rely on either one.

Who Pursues It and Who Hires for It

The credential tends to attract people who already supervise or aspire to supervise grounds operations. Typical settings include:

• Colleges and universities maintaining large campuses with athletic fields, historic plantings, and heavy foot traffic
• Corporate and office campuses where appearance and safety are part of the facility's brand
• Municipal parks and public works departments responsible for turf, trees, and irrigation across many sites
• Healthcare, school district, and institutional facilities with in-house grounds crews
• Landscape management firms that want credentialed leaders on client accounts

Employers value it as evidence that a manager has been tested on technical knowledge and has documented real project work. We discuss how this translates into openings on our CGM jobs page, and the financial side is covered in the CGM salary guide and the ROI analysis. We do not quote salary figures here because the public sources reviewed for this article do not establish them.

The Two-Stage Process: Exam, Then Portfolio

This is the feature that most separates the Certified Grounds Manager credential from a one-sitting test. Earning it involves two distinct hurdles:

1. The application exam. An online, proctored, multiple-choice and true/false test. You have an initial testing window of 30 days.
2. The PGME portfolio. A separately graded body of work, due within one year, evaluated against a rubric. Mentorship and evidence submission are part of the requirement.

The portfolio is where you show applied judgment: documented projects and evidence of how you manage a site. It is graded on its own rubric, and the pass rate for it is not publicly disclosed. The nine PGME portfolio categories are exactly that, portfolio categories. They are not exam domains, and candidates should not mix them up when planning study time.

Eligibility: Degrees, Years, and Supervisory Time

PGMS ties eligibility to a combination of education and experience. Every applicant also needs at least one year at their current facility. Beyond that, there are three tiers:

Notice what this structure tells you: the credential is designed for working managers. A strong academic background shortens the experience requirement but never removes it. For the full walkthrough of how to document and qualify, see our CGM requirements guide.

What the Exam Looks Like

The initial application exam has a defined shape:

• 75 questions in multiple-choice and true/false formats
• 90 minutes to complete it
• 80% required to pass
• Online delivery with an approved proctor

Some details are not established by the public references reviewed. PGMS does not publish how the 75 questions divide between scored and unscored items. The sources also do not confirm whether the exam is open-book, whether a calculator is permitted, whether it is adaptive, or what home-testing environment rules apply. Do not assume any of those; ask your proctor and PGMS before test day. For what the 80% threshold means in practice, see our passing score breakdown.

With 90 minutes for 75 questions, you have roughly a minute and twenty seconds per item on average. That is comfortable for recall questions and tighter for scenario questions that require you to reason through a turf, irrigation, or pest problem. Our difficulty guide looks at where candidates tend to feel the squeeze, and the pass rate article explains why no trustworthy figure can be quoted for this credential.

The Seven Subjects You Prepare For

The PGMS handbook lists seven illustrative subjects for the application exam. Treat them as preparation headings. They are unweighted and are not a complete or official blueprint: PGMS publishes no dated current blueprint, no weighting, and no statement of which subject is largest. The true number of complete weighted exam domains is unverified, so anyone promising you a percentage breakdown is guessing.

For a deeper treatment of each area, read the exam domains guide. Note that these seven preparation subjects are different from the nine PGME portfolio categories, which govern the second stage rather than the exam.

Fees and Registration Mechanics

The published fee structure depends on PGMS membership status:

The arithmetic is worth a moment. A non-member pays $300; joining and applying together costs $400. That means the bundled option effectively prices membership at $100 more than the non-member route, while membership also lowers later renewal costs (see below). Whether it makes sense depends on how long you plan to hold the credential. The full cost picture, including what is and is not included, is in the certification cost breakdown, and scheduling details are in the exam dates guide.

Sequencing Your Preparation

Because no weighting is published, your best strategy is balanced coverage with extra time where your own experience is thinnest. A practical order uses the way the subjects depend on each other: soils first, because drainage, pH, and nutrient availability feed into almost every turf, tree, and fertility question.

The detailed method behind this kind of schedule lives in our study guide, and the cheat sheet is useful for last-pass review. When you are ready to test yourself under realistic conditions, try the CGM practice tests and use the results to decide where your remaining hours should go. If you want structured coursework rather than self-study, see our notes on CGM training.

Keeping the Credential Current

Certification is not permanent. PGMS requires renewal every three years, which involves earning 25 CEUs, with at least 80% of them PGMS-approved. The renewal fee is $75, reduced by $25 for each year of PGMS membership. Practically, that means continuous membership can meaningfully shrink what you pay at renewal.

Plan your continuing education across the cycle instead of cramming at the end. Attending approved conferences, workshops, and courses throughout the three years keeps the 80% PGMS-approved requirement from becoming a scramble. For the broader picture of how the credential fits a career, see our overview of CGM certification and what CGM certification involves.

Frequently Asked Questions