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Pennsylvania Oversize Permits

Legal size/weight limits, escort thresholds, travel restrictions, and permit office contact for Pennsylvania.

Legal Maximum Dimensions (no permit required)

Width
8.5ft (102in)
Height
13.5ft (162in)
Max semitrailer length
53ft
Max single-unit vehicle length
40ft
Max kingpin to rear axle
41ft
Gross Weight
80,000 lbs
Single Axle
20,000 lbs
Tandem Axle
34,000 lbs

75 Pa.C.S. 4922: no vehicle including load may exceed 13 ft 6 in (162 in). The section expressly does NOT require public authorities to provide sufficient vertical clearance for such vehicles. Operating above 13 ft 6 in without a valid permit carries a $500 fine on conviction.

Official source for this height limit →

75 Pa.C.S. 4923: 53 ft single trailer towed by a truck or truck tractor; PennDOT states there is NO overall combination limit ("the length of combinations is controlled by the length of the trailer"). ⚠️ 53 ft alone UNDER-describes Pennsylvania — the binding constraint in practice is often the 41 ft KINGPIN-TO-CENTERLINE-OF-REAR-AXLE limit, which a legal 53 ft trailer can still violate. 40 ft is the single motor vehicle limit (straight truck or tractor alone). Doubles 28 ft 6 in each. ⚠️ PA permit thresholds (90 ft pilot car, 95 ft book-permit cap, 67 Pa. Code 179.10/179.14) are PERMIT ADMINISTRATION thresholds, not legal maximums.

Kingpin to centerline of rear axle may not exceed 41 ft. In practice this is often the BINDING constraint in Pennsylvania rather than the 53 ft trailer length — a legal-length trailer can still violate it.

Official source for these length limits →

Escort / Pilot Car Thresholds (see glossary for terms, certification requirements for the driver)

These escort figures are route-dependent — they can change with road classification, lane width, two-lane vs multilane, and time of day. Confirm with the permit office before dispatching.

Front escort required over
13ft wide
Rear escort required over
13ft wide
Both escorts required over
13ft wide
Height escort required over
14.5ft tall

PA (67 Pa. Code 179.10) uses ONE pilot car whose position depends on road type, not separate front/rear width rules. WIDTH > 13 ft (156 in): pilot car FOLLOWS on highways with two or more lanes same direction, PRECEDES on single-lane-each-direction highways; when a police escort is present the pilot car follows. LENGTH > 90 ft, OR load extends > 15 ft beyond rear: pilot car FOLLOWS. HEIGHT > 14 ft 6 in (174 in): pilot car PRECEDES by 1,000-3,000 ft using a height pole to detect overhead obstructions. POLICE ESCORT (uniformed State or local police) required for buildings exceeding 16 ft wide, for super loads, and where permit conditions require. Pilot cars must run amber flashing lights + OVERSIZE LOAD signage and keep two-way radio and visual contact.

Travel Restrictions

Night travel
Generally restricted
Weekend travel
Generally allowed
Sunday travel
Generally restricted

Oversize movement prohibited sunset to sunrise, Saturday after 12:00 noon, and all day Sunday (179.10(7)); Saturday travel allowed only up to noon. In urbanized/metropolitan areas movement limited to windows 3:00-7:30 a.m., 9:00 a.m.-4:00 p.m., and 7:00 p.m.-sunset. In Allegheny County the Fort Pitt, Squirrel Hill, and Liberty Tunnels are restricted to 9:00 a.m.-4:00 p.m. Off-window/night travel may be authorized case-by-case on the permit. Exact per-route curfews set in APRAS at issuance.

Holiday blackouts: No oversize movement on New Year's Day, Memorial Day, Independence Day (July 4), Labor Day, Thanksgiving Day, and Christmas Day (travel typically also barred the day before).

See how Pennsylvania compares to every state ›

Superload Thresholds

Width over
16ft
Length over
160ft
Weight over
201,000 lbs

Per 67 Pa. Code 179.1, a 'super load' has gross weight exceeding 201,000 lbs, total length exceeding 160 ft, OR total width exceeding 16 ft (192 in). Super loads require police escort and are not auto-issued in APRAS. Separately, supplemental Form M-936AS is required 3+ working days ahead when a combination exceeds 136,000 lbs gross or Table 8-1/8-2 limits. No height component in PA's super-load definition.

Estimated Permit Cost Current

$46 (under 14ft wide) / $97 (14ft+ wide) + $0.04 per ton-mile overweight; superload $68 + $12 per county

Source: PennDOT fee schedule (effective July 1, 2025).

Permit fee only — does not include escort/pilot-car service costs (market-rate, arranged separately) or third-party permit-service fees. This is an estimate for planning purposes, not a quote.

Get a Permit

Online portal
https://apras.penndot.pa.gov/
Phone
1-800-932-4600

Superload: >16ft wide or >201,000 lbs or >160ft — special routing/engineering study required. APRAS online portal for most permits.

Planning a move through Pennsylvania?

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