§ 3364. Minimum speed regulation.
(a) Impeding movement of traffic prohibited.--Except when reduced speed is necessary for safe operation or in compliance with law,
no person shall drive a motor vehicle at such a slow speed as to impede the normal
and reasonable movement of traffic.
(b) Slow moving vehicle to drive off roadway.--
(1) Except when reduced speed is necessary for safe operation or in compliance with law,
whenever any person drives a vehicle upon a roadway having width for not more than
one lane of traffic in each direction at less than the maximum posted speed and at
such a slow speed as to impede the normal and reasonable movement of traffic, the
driver shall, at the first opportunity when and where it is reasonable and safe to
do so and after giving appropriate signal, drive completely off the roadway and onto
the berm or shoulder of the highway. The driver may return to the roadway after giving
appropriate signal only when the movement can be made in safety and so as not to impede
the normal and reasonable movement of traffic.
(2) A pedalcycle may be operated at a safe and reasonable speed appropriate for the pedalcycle.
A pedalcycle operator shall use reasonable efforts so as not to impede the normal
and reasonable movement of traffic.
(c) Establishment of minimum speed limits.--At any other time when the department or local authorities under their respective
jurisdictions determine on the basis of an engineering and traffic investigation that
slow speeds on any highway or part of a highway impede the normal and reasonable movement
of traffic, the department or such local authority may determine and declare a minimum
speed limit below which no person shall drive a vehicle except when necessary for
safe operation or in compliance with law. The minimum limit shall be effective when
posted upon appropriate fixed or variable signs.
(Feb. 2, 2012, P.L.27, No.3, eff. 60 days)
2012 Amendment. Act 3 amended subsec. (b).
Cross References. Section 3364 is referred to in sections 4305, 6109 of this title.
Notes of Decisions
Cited in
9
cases (
5 in the last 5 years), 1988–2025 · leading case:
Com. v. Watley, J. (Pa. Super. Ct. 2017).
Com. v. Watley, J. (Pa. Super. Ct. 2017).
· cites it 9× “S.A. § 3364(a) since the Commonwealth did not present one witness that testified [Watley] obstructed traffic?”1 Watley’s Brief at 4.”
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
· cites it 8× “75 Pa.C.S. §3364. As can be seen, subsection (a), which we will refer to as the “slow speed impeding traffic (motor vehicle)” provision, prohibits motor vehicles from driving at such a slow speed as to impede the normal and reasonable movement of traffic, absent a legal or…”
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
· cites it 4× “See 75 Pa.C.S. § 3364(b)(1).2 In contrast, the pedalcycle provision listed at 2 Subsection (b)(1) states: Except when reduced speed is necessary for safe operation or in compliance with law, whenever any person drives a vehicle upon a roadway having width for not more than one…”
Dooley, W. v. Tate, F. (Pa. Super. Ct. 2021).
· cites it 2× “Moreover, Dooley maintains that the statute upon which Tate relied at trial to demonstrate Dooley’s negligence — 75 Pa.C.S. § 3364(a)3 — “does not apply to one who decelerates in the face of gridlocked traffic and then, after the congestion eases, fails to accelerate as quickly…”
Lux v. Gerald E. Ort Trucking Inc., 56 Pa. D. & C.4th 375 (2002).
· cites it 2× “Upon a review of the motions and briefs filed by the parties hereto, the court finds that its order granting defendant Parker’s preliminary objections in the nature of a demurrer was appropriate. Plaintiff argues in support of its motion to reconsider that the court did not…”
Com. v. Bramowski, M. (Pa. Super. Ct. 2020).
“5 5 Because we hold that the rear light malfunction was sufficient to support the stop, we need not examine the Commonwealth’s argument that the stop was also supported by probable cause that Appellant was violating 75 Pa. C.S. § 3364(a) (“Except when reduced speed is necessary…”
Com. v. Voorhis, J. (Pa. Super. Ct. 2023).
“In support of his argument that Appellant did not create a hazardous or physically offensive condition, he asserts that because his conduct does not meet 75 Pa.C.S. § 3364 – Impeding Traffic, or 18 Pa.”
Com. v. Jimenez Callejas, L. (Pa. Super. Ct. 2025).
“Plainly, Appellant’s vehicle was obstructing the flow of traffic, in contravention of 75 Pa.C.S. § 3364(a), which provides “[e]xcept when reduced speed is necessary for safe operation or in compliance with law, no person shall drive a motor vehicle at such a slow speed as to -9-…”
Commonwealth v. Vianello, 1 Pa. D. & C.4th 125 (1988).
“, On July 20, 1988, the defendant was found guilty of a violation of section 3364 of the Motor Vehicle Code; 75 Pa.C.S. §3364. Defendant filed timely post-verdict motions and brief in support thereof which are now before the court for disposition.”
— 75 Pa. Cons. Stat. § 3364(a) — 5 cases
Com. v. Watley, J. (Pa. Super. Ct. 2017).
“S.A. § 3364(a) since the Commonwealth did not present one witness that testified [Watley] obstructed traffic?”1 Watley’s Brief at 4.”
Dooley, W. v. Tate, F. (Pa. Super. Ct. 2021).
“Moreover, Dooley maintains that the statute upon which Tate relied at trial to demonstrate Dooley’s negligence — 75 Pa.C.S. § 3364(a)3 — “does not apply to one who decelerates in the face of gridlocked traffic and then, after the congestion eases, fails to accelerate as quickly…”
Lux v. Gerald E. Ort Trucking Inc., 56 Pa. D. & C.4th 375 (2002).
“Upon a review of the motions and briefs filed by the parties hereto, the court finds that its order granting defendant Parker’s preliminary objections in the nature of a demurrer was appropriate. Plaintiff argues in support of its motion to reconsider that the court did not…”
Com. v. Bramowski, M. (Pa. Super. Ct. 2020).
“5 5 Because we hold that the rear light malfunction was sufficient to support the stop, we need not examine the Commonwealth’s argument that the stop was also supported by probable cause that Appellant was violating 75 Pa. C.S. § 3364(a) (“Except when reduced speed is necessary…”
Com. v. Jimenez Callejas, L. (Pa. Super. Ct. 2025).
“Plainly, Appellant’s vehicle was obstructing the flow of traffic, in contravention of 75 Pa.C.S. § 3364(a), which provides “[e]xcept when reduced speed is necessary for safe operation or in compliance with law, no person shall drive a motor vehicle at such a slow speed as to -9-…”
— 75 Pa. Cons. Stat. § 3364(b)(1) — 2 cases
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
“75 Pa.C.S. §3364. As can be seen, subsection (a), which we will refer to as the “slow speed impeding traffic (motor vehicle)” provision, prohibits motor vehicles from driving at such a slow speed as to impede the normal and reasonable movement of traffic, absent a legal or…”
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
“See 75 Pa.C.S. § 3364(b)(1).2 In contrast, the pedalcycle provision listed at 2 Subsection (b)(1) states: Except when reduced speed is necessary for safe operation or in compliance with law, whenever any person drives a vehicle upon a roadway having width for not more than one…”
— 75 Pa. Cons. Stat. § 3364(b)(2) — 2 cases
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
“75 Pa.C.S. §3364. As can be seen, subsection (a), which we will refer to as the “slow speed impeding traffic (motor vehicle)” provision, prohibits motor vehicles from driving at such a slow speed as to impede the normal and reasonable movement of traffic, absent a legal or…”
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
“See 75 Pa.C.S. § 3364(b)(1).2 In contrast, the pedalcycle provision listed at 2 Subsection (b)(1) states: Except when reduced speed is necessary for safe operation or in compliance with law, whenever any person drives a vehicle upon a roadway having width for not more than one…”
— 75 Pa. Cons. Stat. § 3364(c) — 2 cases
Com. v. Watley, J. (Pa. Super. Ct. 2017).
“S.A. § 3364(a) since the Commonwealth did not present one witness that testified [Watley] obstructed traffic?”1 Watley’s Brief at 4.”
Commonwealth v. Linton, B., Aplt. (Pa. 2025).
“75 Pa.C.S. §3364. As can be seen, subsection (a), which we will refer to as the “slow speed impeding traffic (motor vehicle)” provision, prohibits motor vehicles from driving at such a slow speed as to impede the normal and reasonable movement of traffic, absent a legal or…”
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