Lane Splitting and Filtering Are Both Illegal in Tennessee

Tennessee's rule is an express statutory prohibition rather than a mere absence of authorisation, which matters because the two produce very different answers. The Tennessee Code never uses the phrase "lane splitting" at all: a full text search of the code for it returns zero sections. The conduct is banned by description instead, in a five line motorcycle lane section that has been on the books since Acts 1976, ch. 758, § 5 and was last touched by Acts 2016, ch. 1015, § 7.

Section 55-8-182 draws three separate lines. Subsection (b) prohibits overtaking and passing in the same lane as the vehicle being passed, which rules out squeezing past a car inside its own lane. Subsection (c) prohibits operating a motorcycle between lanes of traffic, which is lane splitting proper, and also between adjacent lines or rows of vehicles, which is the language that catches filtering between stopped cars at a signal or in a queue on I-40. Subsection (d) caps motorcycles at two abreast in a single lane.

The filtering point is worth spelling out because riders often assume a moving traffic rule cannot reach a stationary queue. Subsection (c) contains no qualifier about speed, congestion, signals or emergency. "Between adjacent lines or rows of vehicles" describes exactly a rider working up the gap between two columns of stopped cars, and nothing in the section makes the prohibition conditional on those cars being in motion. Tennessee has not adopted a filtering exception of the kind some states added in the 2020s; the last amendment to this section, in 2016, added subsection (e) for autocycles rather than any relaxation.

What the section does grant a rider is lane entitlement. Subsection (a) says all motorcycles are entitled to full use of a lane and that no motor vehicle shall be driven in a manner that deprives any motorcycle of the full use of a lane. That is a duty on car and truck drivers, enforceable against them, and it is the direct counterweight to the ban on splitting: a Tennessee rider must stay in the lane and is entitled to have the whole of it. The entitlement in subsection (a) is expressly switched off for motorcycles operated two abreast in a single lane, so a pair riding side by side cannot claim that another vehicle deprived either of them of a full lane.

Autocycles get their own line. Subsection (e) says motorcycles that are autocycles shall not be operated more than two abreast in a single lane. Public Chapter 1015 of 2016, section 7, deleted the old subsection (e) and substituted that sentence, and the same section added subsection (f), the police exemption. Tennessee defines "autocycle" in § 55-1-103, and a fully enclosed autocycle is exempt from the crash helmet requirement under § 55-9-302(b)(2).

The only exemption from the splitting and same lane passing bans is for law enforcement. Subsection (f) provides that subsections (b) and (c) shall not apply to police officers in the performance of their official duties. It is a narrow carve out: it does not touch subsection (d), so even an escort detail is limited to two abreast in a lane, and it does not extend to fire, EMS or civilian escorts.

Section 55-8-182 sits in Title 55, Chapter 8, Part 1, so it is covered by Tennessee's general traffic penalty. Tenn. § 55-8-103 makes it unlawful, and a Class C misdemeanor unless otherwise declared, for any person to do any act forbidden or fail to perform any act required in that chapter. Under § 40-35-111(e)(3) a Class C misdemeanor carries up to 30 days and a fine of up to $50. There is no separate schedule of fixed civil penalties for lane splitting in Tennessee and no administrative points provision inside § 55-8-182 itself, so a splitting citation is charged as an ordinary Class C misdemeanor traffic offence in the court of the county where it occurred.

A driver who crowds a rider out of a lane is exposed under the same penalty provision, because subsection (a) states a duty on the driver of the motor vehicle rather than on the motorcyclist. The civil consequence usually matters more than the fine: a rider injured while splitting has violated a statutory rule of the road, and a driver who ignored subsection (a) has violated one too.