- What CGM Means in Grounds Management
- Who Runs the Credential and How It Works
- The Two-Stage Path: Exam, Then Portfolio
- Who Qualifies to Apply
- Exam Format and Question Style
- The Seven Subject Areas You Prepare Around
- Fees and Registration Mechanics
- Who Hires and Values the Credential
- Sequencing Your Preparation
- Keeping the Credential Active
- Frequently Asked Questions
- CGM here means Certified Grounds Manager, a credential administered by the Professional Grounds Management Society (PGMS).
- The initial exam is 75 questions in 90 minutes, multiple-choice and true/false, with 80% required to pass.
- After the exam, candidates complete a separately graded PGME portfolio with mentorship and evidence submission.
- Fees run $200 for members, $300 for non-members, or $400 to join and apply; a retest costs $50.
What CGM Means in Grounds Management
On this site, CGM stands for Certified Grounds Manager. It is a professional credential for people who manage outdoor landscapes and grounds operations: campuses, parks, corporate properties, athletic facilities, cemeteries, and similar sites. The acronym is shared by several unrelated credentials in other industries, so it is worth being precise. Everything below concerns the grounds-management credential from the Professional Grounds Management Society and nothing else.
If you are still sorting out terminology, our short explainers on what CGM stands for and the meaning of CGM cover the naming question. This article goes further and walks through how the Certified Grounds Manager process actually works, what you are tested on, and what it takes to qualify.
Who Runs the Credential and How It Works
The Professional Grounds Management Society (PGMS) administers the certification. The exam is delivered online with an approved proctor. That proctor requirement is a defining feature of the process: you do not simply log in on your own and click through questions, because an approved proctor must oversee your session.
The credential is not a single exam event. PGMS pairs the written exam with a portfolio component, and both must be completed. That structure makes the Certified Grounds Manager credential closer to a professional-practice evaluation than a pure knowledge test. It rewards people who can document how they actually run grounds operations, not just recall facts.
The Two-Stage Path: Exam, Then Portfolio
The path to becoming a Certified Grounds Manager has two distinct stages, each with its own rules and timeline.
| Stage | What It Involves | Key Details |
|---|---|---|
| Initial exam | Online, proctored knowledge test | 75 questions, 90 minutes, multiple-choice and true/false, 80% required |
| PGME portfolio | Evidence-based portfolio with mentorship | Graded separately with a rubric; due within one year of the testing stage |
The initial testing window is 30 days. After the exam stage, the portfolio is due within one year, and the process includes mentorship and evidence submission. The portfolio is organized around nine PGME categories. Those are portfolio categories, not exam domains, and it is a common mistake to blend the two. The exam subjects and the portfolio categories are separate things with separate purposes.
PGMS does not publicly disclose a pass rate for the portfolio, and a pass rate for the exam is likewise not established in the public sources reviewed. If you want to see how we treat that gap honestly, read our breakdown of the CGM pass rate.
Who Qualifies to Apply
PGMS ties eligibility to a combination of education and experience, with a floor of at least one year at your current facility. The remaining requirement depends on your degree background:
| Education Background | Grounds Experience | Supervisory Experience |
|---|---|---|
| Relevant four-year degree | Four years | Two years |
| Two-year degree | Six years | Three years |
| No qualifying degree | Eight years | Four years |
The pattern is clear: more formal education shortens the experience you need, while candidates without a qualifying degree can still qualify through longer hands-on and supervisory time. The supervisory component is important. This credential is aimed at people who direct crews and budgets, not just those who perform field tasks. For a fuller treatment of prerequisites and how to document them, see our guide to CGM requirements and eligibility.
Exam Format and Question Style
The initial exam contains 75 questions delivered in a 90-minute window. Questions are multiple-choice and true/false. You need 80% to pass, which is a demanding threshold: the margin for error is narrow, so broad coverage matters more than deep specialization in one area. Our dedicated article on the CGM passing score unpacks what that cutoff means in practice.
A few details PGMS does not publish, and which we will not guess at:
- How many of the 75 questions are scored versus unscored
- Whether the exam is open-book (the reviewed references do not establish this)
- Calculator rules, adaptive-testing behavior, and rules about testing from home
Confirm those logistics directly with PGMS and your proctor before test day rather than relying on assumptions. Treat any unverified detail as unknown until PGMS confirms it in writing.
The Seven Subject Areas You Prepare Around
The PGMS handbook lists seven illustrative subjects for the application exam. These are unweighted preparation headings, not a complete or weighted blueprint. PGMS has not published a dated current blueprint, and no single largest domain weight is available. The handbook itself carries 2022 annotations. So use these seven areas as a study map, not as a promise of how many questions each will contribute.
Domain 1: Chemical and Fertilizers
Applied knowledge of the products grounds managers use and the judgment around using them responsibly.
- Fertilizer selection, nutrient needs, and timing
- Pesticide and chemical handling, application, and safety
- Reading labels and understanding regulatory expectations
Domain 2: Insects and Disease
Recognizing problems in turf, trees, and ornamentals and choosing sensible responses.
- Identifying common pests and pathogens
- Integrated pest management thinking
- Matching a diagnosis to a control strategy
Domain 3: Irrigation
Water delivery and conservation across managed landscapes.
- System components and how they interact
- Scheduling and efficiency
- Diagnosing coverage and performance problems
Domain 4: Management
The leadership and operations side of running a grounds program.
- Budgeting, planning, and resource allocation
- Staffing, supervision, and safety practices
- Communicating with stakeholders and clients
Domain 5: Soils
The foundation under every planting and turf area.
- Soil structure, texture, and fertility
- Testing and interpreting results
- Amendments, drainage, and compaction issues
Domain 6: Trees and Shrubs
Selection, care, and maintenance of woody plants.
- Planting, pruning, and long-term care practices
- Recognizing stress and decline
- Right plant, right place decisions
Domain 7: Turf Grasses
Species, cultural practices, and problem solving for managed turf.
- Cool-season versus warm-season considerations
- Mowing, aeration, overseeding, and renovation
- Connecting turf health to soil, water, and pest factors
These subject areas overlap constantly in real work. A turf decline problem might involve soils, irrigation, insects and disease, and chemical choices all at once. Strong candidates learn to see those connections. For a deeper walkthrough of each area, see our complete guide to the seven CGM content areas.
Fees and Registration Mechanics
PGMS structures fees around membership status, which makes joining the society a real cost consideration:
| Fee Type | Amount |
|---|---|
| Exam fee, PGMS member | $200 |
| Exam fee, non-member | $300 |
| Join and apply together | $400 |
| Retest | $50 |
The comparison is worth a moment of arithmetic. A non-member pays $300 for the exam alone, while the join-and-apply option at $400 bundles membership with the application. If you plan to stay involved with the society, which also affects renewal costs, the bundled route can make sense. A retest is a comparatively modest $50, which softens the stakes of a first attempt, though it is no substitute for real preparation. For the full financial picture, including renewal, see our CGM certification cost breakdown.
Key Takeaway
Decide on PGMS membership before you register. Membership changes both your initial fee and your later renewal cost, so the cheapest path depends on whether you intend to stay in the society for the long term.
Who Hires and Values the Credential
The Certified Grounds Manager credential speaks to employers who manage substantial outdoor assets and want evidence of both technical knowledge and supervisory competence. Typical settings include:
- College and university campuses with large, varied landscapes
- Municipal and county parks and public-works grounds divisions
- Corporate and institutional campuses, including healthcare and education
- Athletic complexes and recreational facilities
- Commercial landscape management firms overseeing multiple client sites
Because eligibility requires supervisory experience, the credential naturally signals readiness for lead, supervisor, and manager roles rather than entry-level crew positions. We deliberately avoid quoting salary numbers here, since none are established in our verified source material. If you are weighing the career upside, our articles on CGM earnings, CGM jobs, and whether the certification is worth it take a measured look at the question.
Sequencing Your Preparation
You do not need a generic study system here. What helps is ordering the seven subject areas so that foundational topics come before the ones that depend on them. Soils and chemicals underpin much of what follows, so they belong early. Management ties everything together and works well as a closing review.
Soils and Chemical/Fertilizers
- Soil structure, testing, and amendments
- Fertilizer and chemical fundamentals, plus safe handling
Irrigation and Turf Grasses
- Irrigation components, scheduling, and diagnostics
- Turf species and cultural practices tied back to soil and water
Trees and Shrubs, Insects and Disease
- Woody plant care, selection, and stress recognition
- Pest and disease identification with IPM reasoning
Management and Timed Practice
- Budgeting, supervision, and operations
- Full timed practice sets to rehearse the 90-minute pace
Start the portfolio thinking in parallel, since the evidence you submit comes from real projects and mentorship. For a broader plan that works across all stages, see our CGM study guide, and keep our one-page CGM cheat sheet handy for last-minute review. You can also sharpen your recall with questions on the main CGM practice test site.
Keeping the Credential Active
Certification is not permanent. A Certified Grounds Manager renews every three years by completing 25 continuing education units (CEUs), with at least 80% of those units coming from PGMS-approved activities. The renewal fee is $75, reduced by $25 for each year of PGMS membership. Long-standing members therefore pay noticeably less at renewal than non-members, which reinforces the earlier point about weighing membership early.
Build your CEU habit from day one rather than scrambling in year three. Tracking approved activities as you go keeps the 80% requirement from becoming a last-minute problem.
Frequently Asked Questions
It means Certified Grounds Manager, a credential administered by the Professional Grounds Management Society. It is unrelated to other credentials that happen to share the same acronym.
The initial exam has 75 questions, delivered in 90 minutes as multiple-choice and true/false items. You need 80% to pass. PGMS does not publish how many questions are scored versus unscored.
No. After the exam stage, candidates complete a separately graded PGME portfolio that includes mentorship and evidence submission. The portfolio is due within one year, and its pass rate is not publicly disclosed.
No. They are illustrative preparation headings from the PGMS handbook, not an exhaustive or weighted blueprint. No largest domain weight is published, so prepare broadly across all seven.
Renew every three years with 25 CEUs, at least 80% of which must be PGMS-approved. The renewal fee is $75, reduced by $25 for each year of PGMS membership.