MOLO Passing Score 2026: Exactly What You Need to Pass

The Number: 70% and What It Means

The Solid Waste Association of North America (SWANA) states that the Manager of Landfill Operations (MOLO) exam requires 70% to pass. That is the single hard scoring figure available in SWANA's current national administration materials, and it is the number every candidate should build a plan around.

Seventy percent sounds forgiving until you consider the scope. This is a management-level credential covering regulation and permitting, finance, leachate, landfill gas, groundwater, stormwater, staffing and more. A candidate who is a strong operator but weak on finance or regulatory compliance can lose a lot of points in a few topic areas. Passing means being broadly competent across a manager's whole job, not brilliant in one corner of it.

If you are still deciding whether to pursue the credential, our guide to how hard the MOLO exam is puts the 70% threshold in context, and the MOLO requirements guide covers whether you qualify to sit for it.

What SWANA Publishes (and What It Doesn't)

Candidates searching for a "passing score" often expect a scaled number, a cut-score explanation or a domain-by-domain breakdown. For MOLO, the honest answer is that much of that detail is not public. Here is a plain accounting.

One piece of chapter-level evidence is worth knowing about, with limits. The Northern Lights Chapter's application for Manitoba landfill operator certification describes MOLO as 150 multiple-choice questions, delivered online only. That is a Canadian chapter document, not a national confirmation of the current count for both editions, so treat 150 as a useful planning figure rather than a guarantee. For the same reason, we do not quote a pass rate here; our MOLO pass rate article explains why no reliable aggregate figure exists.

Exam Mechanics That Affect Your Score

Your score is partly a function of knowledge and partly a function of how the exam is delivered. Several mechanics from SWANA's national process can quietly cost you points if you ignore them.

Online delivery and conduct rules

Testing runs through Captus. SWANA's Online Testing Conduct Policy prohibits assistance, mobile devices and study aids unless they are expressly allowed. Do not assume the exam is open-book, and do not assume a calculator is permitted. The Manitoba chapter form mentions calculator or formula-sheet permission, but that detail cannot be generalized to both national variants. Read the instructions you receive after your application is approved, and plan to rely on memorized relationships and formulas.

The three-hour clock

The exam lasts at most three hours and cannot be paused and resumed. If the question count is near the 150 figure from the chapter form, that works out to roughly 72 seconds per question on average. That is a planning estimate, not an official pacing guide, but it shows why you cannot afford to stall on a single leachate calculation or regulatory citation. Flag, move on and return.

Timing and access

Application approval comes first, and only then do you get access to the exam. After purchase you have six months to take it. Schedule your attempt for when your preparation peaks, not when your calendar happens to be open. See the MOLO exam dates guide for scheduling considerations.

The Four Competency Categories and Your Score

The preparation categories supplied for this credential are Foundational, Strategic, Technical and Management. SWANA presents these as unweighted job-competency categories used for preparation and readiness assessment. They are not a published, percentage-weighted exam blueprint, and they do not establish exhaustive exam coverage. That distinction matters for scoring: with no published weights, you cannot safely "skip" a category and bank on the others.

These groupings are a study aid. The Body of Knowledge documents organize content by 26 job functions, and individual items may touch more than one category. For a deeper walkthrough, see our MOLO exam domains guide.

Where the 26 Job Functions Hide Your Points

Both the U.S. and Canadian Body of Knowledge documents are 54 pages and each contains 26 job functions. Because no category weights are published, the safest scoring strategy is to treat all 26 as fair game. Here are the functions the documents cover:

• General knowledge, regulation and permitting, safety, and finance
• Equipment and assets, planning, disaster contingencies, improvement and operational training
• Phase development, scales, waste and cell operations, and cover
• Restricted materials, ancillary activities, leachate and gas
• Environmental controls, groundwater, stormwater, infrastructure and closed landfills
• Communication, staffing, leadership and professional development

Points candidates commonly leave behind

Experienced operators tend to be comfortable with daily waste and cell operations, cover and equipment. The easier places to drop points are the functions that sit outside daily field work: finance, regulation and permitting, planning, closed landfills, and the leadership and professional development material. If your background is hands-on, your 70% is more likely to be won or lost in the manager-level functions than in the ones you do every shift.

U.S. vs. Canadian Edition: Don't Blend Them

SWANA offers separate U.S. and Canadian exams, each with its own registration link. The Body of Knowledge documents are dated differently (the U.S. edition internally dates to September 2021 and the Canadian edition to February 2022), and one job function is labeled differently between them.

The practical point for your score: do not mix jurisdiction-specific requirements. If you are sitting the U.S. exam, study the U.S. Body of Knowledge and U.S. regulatory framing. If you are sitting the Canadian exam, study the Canadian document. Importing the other edition's terminology or regulatory assumptions is an easy way to second-guess correct answers and lose points you should have kept.

Retakes, Fees and the Cost of Missing 70%

The cost of falling short is financial as much as emotional. SWANA's national process lists the application and exam fee at USD 250 for members or USD 400 for nonmembers. Membership and any training are separate costs. Immediate retakes are permitted with no numerical attempt limit, but you pay the full fee each time.

That arithmetic shows why a nonmember who misses 70% pays a steep premium for a second try, and why the membership question is worth settling before you apply. For the complete picture of related expenses, read our MOLO certification cost breakdown. If you are weighing whether the investment pays off, the MOLO ROI analysis and the MOLO salary guide address that question.

Eligibility also gates your first attempt. The routes are five years of municipal-solid-waste management experience plus a high school diploma or GED, or four years plus a relevant two-year degree, or three years plus a relevant four-year bachelor's degree. Every route also requires at least two years of discipline-related management or supervisory experience and direct responsibility for daily operations; that management requirement is not automatically added to the experience total.

A Score-Driven Study Sequence

This is the one planning section in the article, and it is tied to MOLO's structure rather than generic study habits. Start from the 70% target and the unweighted categories: because every category is potentially in play, sequence your weeks so that your weakest manager-level material gets the most repetitions. Our full MOLO study guide expands on this approach.

Finish with timed sets on the MOLO practice test site so the three-hour, no-pause constraint feels routine before test day. A one-page MOLO cheat sheet is useful for last-week review, though remember you will not have study aids during the exam itself.

After You Pass: Keeping the Credential Valid

A passing result is not permanent. SWANA states that certification is valid for three years. To recertify, you need 30 relevant Professional Development Hours (PDHs), a renewal application and USD 250 per discipline, all before the credential expires. Membership is separate. PDH is the current terminology, replacing the older CEU wording.

If the credential expires, you must retake and pass the exam again, which means facing the 70% threshold a second time at the full fee. Treating renewal as a deadline you track from day one is far cheaper than relearning the material cold. For the career side of the credential, including who hires landfill managers, see our overview of MOLO jobs, and for a refresher on the basics, what MOLO certification is.

Frequently Asked Questions

For a broader introduction to the credential and its scope, start with What Is MOLO? and keep the MOLO passing score figure of 70% front and center as you plan your attempt.