Md. Code, Transportation § 21-1412
This is the official text of Md. Code, Transportation § 21-1412, part of Maryland’s Code, Transportation — governs vehicles, drivers, and roadways.
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§21–1412.
Official statutory text
(a) Except at the direction of authorized personnel, vehicular traffic may not cross the double white lines that designate the vehicular traffic lanes in a tunnel.
(b) Except at the direction of authorized personnel, trucks and slow moving vehicles may be driven only in the right lane of a tunnel.
(c) The driver of a vehicle may not sound his horn or flash his headlights in a tunnel.
(d) While in a tunnel, a person may not use any cutout or other device that allows exhaust gases to escape a motor without passing through a muffler or silencer.
(b) Except at the direction of authorized personnel, trucks and slow moving vehicles may be driven only in the right lane of a tunnel.
(c) The driver of a vehicle may not sound his horn or flash his headlights in a tunnel.
(d) While in a tunnel, a person may not use any cutout or other device that allows exhaust gases to escape a motor without passing through a muffler or silencer.
Status: in_force · Read it on the official government site
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