- The Magic Number: What "Passing" Actually Means
- How the 70-100 Scale Actually Works
- Two Parts, One Score: Multicraft and Spatial Relations
- Veterans' Preference Points and Their Real Limits
- Retest Rules: The 120-Day Window Explained
- Entrance vs. Inservice: Score Validity Differs
- Why Scoring "70" Rarely Gets You Hired
- Which Domains Decide Whether You Clear 70
- A Focused Prep Timeline Built Around the Score Line
- FAQ
- The passing score on USPS Maintenance Exam 955 is 70, on a scale that runs from 70 to 100.
- Scores below 70 cannot be fixed with Veterans' Preference points - those only apply to already-passing scores.
- The exam has exactly two parts: Multicraft (60 items, 60 minutes) and Spatial Relations (68 items, 40 minutes).
- Entrance-applicant scores expire on a date printed on your Notice of Results; inservice scores don't expire unless requirements change.
The Magic Number: What "Passing" Actually Means
If you're preparing for USPS Maintenance Exam 955, the number that matters most is 70. Under Handbook EL-304, the Maintenance Selection System sets 70 - excluding any Veterans' Preference points - as the minimum score required just to be considered for any Maintenance Craft position you've applied for. That word "considered" is deliberate: passing doesn't guarantee an interview or a job offer, it simply puts you into the pool of eligible candidates USPS can review for the specific position it's filling.
This is different from a pass/fail exam where clearing the bar means you're done. On USPS 955, your rating becomes a competitive number. Understanding exactly how that number is built - and where the real risk to your score lives - is the difference between a candidate who clears 70 comfortably and one who scrapes by or falls just short. For a broader look at how the whole exam is structured before you drill into scoring mechanics, the USPS 955 Study Guide 2026 is a useful starting point.
How the 70-100 Scale Actually Works
Eligible ratings on USPS 955 run from 70 to 100. There is no scoring above 100 and no partial credit system published to the public beyond that band. USPS does not release a percentage breakdown of how raw answers convert to this scaled score, and it does not publish per-domain weighting - content performance is reported only in broad bands: High, Average, and Low. That means you won't get a granular percentile telling you exactly which of the 21 technical fields cost you points; you'll see banded feedback instead.
Because the scale tops out at 100 and bottoms out (for passing purposes) at 70, every point above the minimum genuinely helps your competitive position, since hiring is comparative among eligible scores. This is one reason candidates shouldn't aim to just barely clear 70 - they should aim to build a real margin. The USPS 955 Pass Rate 2026 article looks more closely at how these bands play out across candidates.
Key Takeaway
Treat 70 as a floor, not a target. Since USPS reports performance only in High/Average/Low bands, there's no way to know in advance exactly how close to the edge you are - so build cushion.
Two Parts, One Score: Multicraft and Spatial Relations
Your final rating is built from exactly two test sections defined in the official USPS Assessment Information Package - no more, no fewer. Older study materials sometimes reference a third component, the Personal Characteristics and Experience Inventory, but that belonged to the retired Exam 473 and does not exist on Exam 955. If a guide mentions it, that's a signal the material wasn't written for this exam.
Part 1: Multicraft
60 items in 60 minutes, assessing mechanical and electrical job skills drawn from the technical content areas.
- Covers craft knowledge across electrical, mechanical, and shop-based systems
- Mixes practical job-task knowledge with underlying scientific theory
- One minute per item on average - pacing matters as much as accuracy
Part 2: Spatial Relations
68 items in 40 minutes, split into two distinct question types.
- Matching Parts and Figures: decide which figure shows how loose pieces fit together without gaps or overlap
- Spatial Visualization: decide which solid would produce the top, front, and right views shown
- Roughly two hours total testing time when combined with Multicraft, plus check-in and instructions
Because both parts feed into a single combined rating, a weak showing on Spatial Relations can drag down an otherwise strong Multicraft performance, and vice versa. For a full breakdown of how the nine specific content domains map onto these two parts, see the USPS 955 Exam Domains 2026 guide.
Veterans' Preference Points and Their Real Limits
Veterans' Preference points are a genuine advantage in the Maintenance Selection System, but they work in a specific, limited way: they are added only to scores that have already passed at 70 or above. They cannot lift a failing score into eligibility. In other words, if your raw performance lands at 65, no amount of preference points changes that outcome - you still need to retest.
This distinction matters because some candidates mistakenly treat preference points as a safety net that lowers the bar they need to hit on test day. It doesn't. The 70 threshold has to be met on the exam itself, on the excluding-preference basis, before those points do anything at all.
Retest Rules: The 120-Day Window Explained
Handbook EL-304 sets a uniform 120-day rule for retesting, though it applies slightly differently depending on your status:
- External entrance applicants who reapply may retake the test, or reuse their existing score, once 120 days or more have passed since their original test date.
- Incraft (current employee) candidates testing for a score update may reschedule 120 days after their original exam date.
There's no unlimited retest cadence - you can't simply retake the exam every week hoping for a better number. This makes each attempt count for more, and it's part of why serious preparation before your first sitting matters more on USPS 955 than on exams with shorter or looser retest windows. If you're weighing how tough this exam really is relative to that retest structure, the How Hard Is the USPS 955 Exam? guide walks through it in detail.
Entrance vs. Inservice: Score Validity Differs
Not all passing scores behave the same way once you have them:
| Candidate Type | Score Validity | Retest Trigger |
|---|---|---|
| External entrance applicant | Expires on a date printed on the Notice of Results | May retake or reuse score after 120 days |
| Current employee (inservice, open season) | Valid indefinitely unless examination requirements change | May reschedule for a score update after 120 days |
This is a meaningful planning detail. An external applicant who passes at 70 or above needs to track the expiration date on their Notice of Results, since a rating that lapses no longer counts toward eligibility. A current employee testing during the Maintenance Craft inservice open season doesn't face that expiration clock - their score stands indefinitely unless USPS changes what the exam requires. If you're unsure which category applies to you, the USPS 955 Requirements 2026 page covers eligibility rules for both entrance and inservice candidates in detail.
Why Scoring "70" Rarely Gets You Hired
Because eligible ratings run on a 70-100 scale and hiring pulls from that pool competitively, a bare 70 places you at the bottom of the eligible list rather than out of the running. USPS uses Exam 955 to fill a wide range of Maintenance Craft roles - Electronic Technician (PS-10 and PS-11), Maintenance Mechanic MPE, Area Maintenance Specialist, Building Equipment Mechanic, Maintenance Electrician, Machinist, Carpenter, Mason, Plumber, Painter, Blacksmith-Welder, Letter Box Mechanic, and Building Maintenance Custodian. Positions vary in how many applicants compete and how selective the hiring facility needs to be, so a higher score generally gives you more flexibility across whichever roles you're pursuing.
This is one of the clearest arguments for treating your prep seriously rather than aiming for the minimum. It's also worth thinking about in terms of long-term payoff - the Is the USPS 955 Certification Worth It? analysis and the USPS 955 Salary Guide 2026 both look at what these Maintenance Craft roles offer once you're hired.
Which Domains Decide Whether You Clear 70
Since Multicraft and Spatial Relations are scored together, weakness in any single technical field can pull your combined rating toward the line. The exam draws from 21 technical fields covering roughly 131 topics, spanning both practical craft knowledge and the scientific theory behind it. Broadly, that content maps to these domains:
Domain 1: AC/DC Theory, Power Distribution, and Electrical Maintenance
Foundational electrical theory questions appear throughout Multicraft - circuits, distribution, and maintenance procedures are common ground.
- Core Ohm's law and circuit-behavior reasoning
Domain 2: Motors, Control Circuits, Schematics, and Print Reading
Reading and interpreting schematics is a recurring skill tested indirectly across several Multicraft items.
- Motor control logic and symbol recognition
Domains 4-7: Hydraulics/Pneumatics, Pumps/Piping/Combustion, Mechanical Maintenance, Welding and Rigging
These mechanical fields make up a large share of the "hands-on" craft knowledge tested, reflecting the physical maintenance work these positions actually involve.
- Practical shop tools, lubrication, and power transmission concepts
Domains 8 and 9: Spatial Relations - Matching Parts and Figures, Spatial Visualization
These two domains are the entire Spatial Relations section: 68 items in 40 minutes, testing how quickly and accurately you can reason about how parts and solids fit together.
- Speed matters - roughly 35 seconds per item on average
For candidates who want the complete nine-domain map with study priorities for each, the USPS 955 Exam Domains 2026 guide breaks all nine down individually. A quick-reference version of the same material is available in the USPS 955 Cheat Sheet 2026.
A Focused Prep Timeline Built Around the Score Line
Rather than studying everything evenly, it helps to sequence your prep so weaker domains get more runway before test day - since a single soft area can be enough to keep a candidate under 70 on a combined score.
Electrical Foundations (Domains 1-3)
- Review AC/DC theory, power distribution, and basic troubleshooting logic
- Practice schematic and print-reading questions to build speed
Mechanical Systems (Domains 4-6)
- Work through hydraulics, pneumatics, pumps, piping, and combustion basics
- Drill power transmission, lubrication, and shop tool identification
Welding/Rigging and Timed Multicraft Drills (Domain 7)
- Practice full 60-item Multicraft sets timed to 60 minutes
- Track which technical fields keep tripping you up
Spatial Relations Speed Work (Domains 8-9)
- Run timed Matching Parts and Figures sets to build a consistent per-item pace
- Practice Spatial Visualization using top/front/right view problems until decisions feel automatic
Running full-length practice sessions under real time pressure on our practice test platform is one of the most direct ways to see whether your pacing and accuracy would actually clear 70 before you sit for the real thing.
Frequently Asked Questions
A minimum score of 70, excluding Veterans' Preference points, is required to be considered for any position applied for. Eligible ratings run from 70 to 100.
No. Veterans' Preference points are added only to scores that already meet the 70 minimum. They cannot convert a failing score into eligibility.
Multicraft has 60 items in 60 minutes, and Spatial Relations has 68 items in 40 minutes, for roughly two hours of total testing time.
Handbook EL-304 sets a 120-day rule: entrance applicants who reapply may retest or reuse their existing score after 120 days, and incraft candidates seeking a score update may reschedule 120 days after their original exam date.
For external entrance applicants, yes - the expiration date is printed on your Notice of Results. For current employees testing during the inservice open season, scores remain valid indefinitely unless examination requirements change.