Driving Regulations




STATE SPEED LIMITS
max. on open hwys.
EMERGENCY
CELLULAR PHONE
NUMBERS
WEATHER-MANDATED
DAYTIME HEADLIGHT USE
STUDDED TIRES
PERMISSIBLE DATES
CHILD RESTRAINT
MANDATORY USE
Alabama 70-I; 65 4-lane * HP (* 47) When raining/wipers in use/visibility is less than 500 ft. All year; rubber only Under age 4; seatbelts under 6
Alaska 55-I, unless posted 911 or *273 Where posted 9/15 - 5/1 N. of 60;
9/30 - 4/15 S. of 60
Under 7 years of age
Arizona 75-I; 55 others 911 When visibility is less than 500 ft. Oct. 1-May 1 Under age 5
Arkansas 70-I rural;
65-I suburban; 60-I urban;
55 on others
911 When raining or wipers in use
or when visibility is less than 500 ft.
Nov. 15-Apr. 15 Under age 4,
or less than
40 lbs; seatbelts under 4 or 40 + lbs.
California 65-I; 55 4-lane up *911 When visibility is 1000 ft.
or less
Nov. 1-Apr. 30 Under age 6, or less than 60 lbs.;
Colorado 75-I;
65 on highways & 4 lane
911 When visibility is 1000 ft.
or less
No restrictions Under age 4, and less than 40 lbs.; seatbelts under 15, or 40 + lbs.
Connecticut 55 *911 When visibility is 500 ft.
or less
Nov. 15-Apr. 30 Under age 4, and less than
40 lbs.; seatbelts
under 16
Delaware 65 where posted
55 on 4-lane;
50 on 2-lane
911 When wipers in use or when
visibility is 1000 ft. or less
Oct. 15-Apr. 15 Under age 4; seatbelt under 16
D.C. 45 on expressways
or as posted
25 on other,
as posted @
727-6161 When raining or wipers
in use or when
visibility is 500 ft. or less
Oct. 15-Apr. 15 Under age 4;
seatbelt under 16
Florida 70-I/TPK;
55 on others
*FHP (*347) During rain/fog/smoke,
or when wipers in use
All year; types that do not damage hwys Under age 5; seatbelts under 6
Georgia 70 outside urban Interstates; 65 on others *GSP When visibility is 500 ft.
or less
Only during snow
or ice conditions
Under age 3;
seatbelts 3 & 4
Hawaii 55 or as posted 911 When visibility is 200 ft.
or less
Prohibited Under age 4
Idaho 75-I rural;
55 on others
*ISP (*477) When raining or wipers
in use or when
visibility is 500 ft. or less
Oct. 1-Apr. 15 Under age 4; and less than 40 lbs.
Illinois 65-I;
55 on others
911 &
* 999
(Chicago Area)
When visibility is restricted Prohibited Under age 4,
seatbelt 4 & 5
Indiana 55 or
65-I/TOLL
as posted;
55 on others
911 In rain; wipers in use;
visibility less than 500 ft.
Oct. 1-May 1 Under age 4
Iowa 65-I; & 4-lane hwy as posted; 55 on others *55, 911 or
(800) 525-5555
In rain; wipers in use;
visibility less than 500 ft.
Nov. 1-Apr. 1 Under age 3;
seatbelt under 6
Kansas 70-I/TPK;
65 on others
as posted
*47 When visibility is less
than 1000 ft.
Nov. 1-Apr. 15 Under age 4,
seatbelt under 14
Kentucky 65-I;
55 on others
(800) 222-5555
or 911
--- No restrictions Under 41
inches tall
Louisiana 65-I rural;
or as posted
911 When visibility is less
than 500 ft.
Prohibited Under age 5
Maine As posted *77 When wipers in use Oct. 1-May 1 Under age 4
Maryland 65-I as posted;
50 on undivided;
55 on others
Emger. 911
Non-emger. #77
When wipers in use Nov. 1-Mar. 31
In western counties
Under age 4,
40 lbs. or less;
seatbelt under 16
Massachusetts 65-I
50 divided;
40 hwy;
55 on others
*SP When visibility is 350 ft.
or less
Nov. 2-Apr. 30 Under age 5; or
less than 40 lbs;
seatbelt under 12
Michigan 70-frwys
and rural;
55 on others
911 In rain; wipers in use;
visibility less than 500 ft.
Prohibited
except certain
conditions
Under age 4
Minnesota 70-I rural;
other 45 to 65
as posted
*911 In rain; wipers in use;
visibility less than 500 ft.
Prohibited Under age 4
Mississippi 70-I;
65 4-lane hwy;
55 others,
or as posted
*HP (*47) In rain; wipers in use;
visibility less than 500 ft.
Prohibited Under age 4
Missouri 70 unless posted;
65 4-lane divided;
55 2-lane;
60 other,
unless posted
*ISP (*55) In rain; wipers in use;
visibility less than 500 ft.
Nov. 1-Mar. 31 Under age 4
Montana 75 unless posted;
65-I;
55 on others
(800) 525-5555 or 911 When visibility is 500 ft.
or less
Oct. 1-May 31 Under age 4; or less than 40 lbs.
Nebraska 75 rural;
65-I city, state hwy
& others
as posted;
60 open hwy
*55 In rain; wipers in use;
visibility less than 500 ft.
Nov. 1-Apr. 1 Under age 5,
or less than
40 lbs.; seatbelts under 16
Nevada as posted *NHP When visibility is 1000 ft.
or less
Oct. 1-Apr. 30 Under age 5,
40 lbs. or less
New Hampshire 65-I;
55 others
*77 When visibility is 1000 ft.
or less
No restrictions Under age 4,
seatbelt under age 18
New Jersey 65-I/TPK;
50 others
#77 When visibility is 500 ft.
or less
Nov. 15-Apr.1 Under age 17 mos. in front seat; seatbelts under 5
New Mexico 75-I;
others as posted
911
(State Restricts Cell Phones)
In rain; wipers in use;
visibility less than 500 ft.
No restrictions Under age 2 in front seat; seatbelts
under 11
New York 65-I rural
55 others
911
(State Restricts Cell Phones)
When wipers in use
or visibility less
than 1000 ft.
Oct. 16-Apr. 30 Under age 4; seatbelts
under 16
North Carolina 70-I or 65-I,
as posted;
55 others
*HP When visibility is 400 ft.
or less
No restrictions Under age 3;
seatbelt under 12
North Dakota 70-I;
65-US Hwy,
as posted;
65 day,
55 night on
paved 2-lanes;
55 on others
unless posted
(800) 472-2121
*2121
When visibility is 1000 ft.
or less.
Oct. 15-Apr. 15 Under age 4,
seatbelt under 18
Ohio 65-I/TPK;
60 or 55
others as posted
911 or *DUI When visibility is 1000 ft.
or less
Nov. 1-Apr. 15 Under age 4, or
less than 40 lbs.
Oklahoma 75-TPK; 70-I
4-lane div.
or sup. 2-lane;
55 country
*55 When visibility is 500 ft.
or less
Nov. 1-Apr. 1 Under age 4, or less than 60 lbs.;
seatbelts under 13
Oregon 65-I;
55 on others
911 When visibility is 1000 ft.
or less
Nov. 1-Apr. 1 Under age 4, or
less than 40 lbs.; seatbelts under 16, and 40 + lbs.
Pennsylvania 65-I rural/TPK;
55 on others
911 When visibility is 1000 ft.
or less
Nov. 1-Apr. 15 Under age 4
Rhode Island 65-I
as posted;
55 on others
*77, 911 or
444-1000 for
mechanical difficulties
When visibility is 500 ft.
or less
Nov. 15-Apr. 1 Under age 4;
seatbelt 13;
backseat under 6
South Carolina 70-I rural;
55 on others
--- When visibility is 500 ft.
or less
All year;
must not project
more than
1/16 inch
when compressed
Under age 4; seatbelts under 6
South Dakota 75-I rural;
65-others as posted
911 but not
widely available
When visibility is 200 ft.
or less
Oct. 1-Apr. 30 Under age 5, or
less than 40 lbs.; seatbelts under 5 & 40 + lbs.
Tennessee 70-I rural;
55 on others
*THP (*847) When visibility is 200 ft.
or less
Oct. 1-Apr. 15 Under age 4;
seabelts under 13
Texas 70-I day,
65-I night,
55 night
on others
(800) 525-5555
or 911
When visibility is 1000 ft.
or less
All year;
types that do not
damage hwys.
Under age 2;
seatbelts under 4, or less than 3ft; seatbelts under age 17
Utah 75-I rural
others as posted
911 or
*11 for
road assistance
(State Restricts Cell Phones)
When visibility is 1000 ft.
or less
Oct. 15-Mar. 31
soft studs only
Under age 5; seatbelts
under 19
Vermont 65-I;
50 on others
or as posted
911 When visibility is 500 ft.
or less
No restrictions Under age 5;
seabelts under 13
Virginia 65-I;
55 on
others @
911 or
#77
When visibility is 500 ft.
or less
Oct. 15-Apr. 15 Under age 4;
seabelts under 16
Washington 70 when posted;
55 on others
911 When visibility is 100 ft.
or less
Nov. 1-Apr. 1 Under age 6, or less than 60 lbs.;
seabelts under 16 or 60 + lbs.
West Virginia 70-I/TPK;
65 or 55
as posted
*SP When visibility is 500 ft.
or less
Nov. 1-Apr.15 Under age 3;
seabelts under 9
Wisconsin 65-I and
4-lane hwys.;
55 on open
hwy.as posted
911 When visibility is 500 ft.
or less
Prohibited Under age 4;
seabelts under 8
Wyoming 75-I;
65 on others
as posted
#4357 (HELP)
or 911
When visibility is 1000 ft.
or less
No restrictions
Chains may be req.
in snow emergencies
Under age 5; or
less than 40 lbs.
Alberta 100 km/h
primary hwy;
80 km/h non-primary hwy.
911 + When visibility is 150 m.
or less
No restrictions Under age 6,
or less than
18 kg
British Columbia 80 km/h
open hwy. or
as posted
911 + When visibility is 150 m. Oct. 1-Apr. 30 Under age 6
Manitoba 90 km/h or
as posted @
911 + When visibility is 60 m.
or less
Oct. 1-Apr. 30 Under age 5,
or less than
23 kg
New Brunswick 80 km/h or
as posted @
911 in some
areas or
(800) 665-6663
+ When visibility is 150 m.
or less
Oct. 16-Apr. 30 Under age 5.
Up to 20 lbs. infant carrier
rear-facing;
20-40 lbs.
carseat facing forward; 40-45 lbs. lap belt and booster seat
Newfoundland 100 km/h on Trans.-Can. Hwy; 90 km/h hwy w/paved shldr; 80km/h on others @ 911 + Nov. 1-Apr. 30 Mandatory
Northwest Territories 100 km/h or
as posted @
--- Required at all times No restrictions Required
Nova Scotia 80 km/h or
as posted @
911 + When visibility is 150 m.
or less
Oct. 15-Apr. 30 Less than 18 kg
Ontario 100 km/h
4-lane hwys;
80 km/h
on others
as posted @
911 + When conditions warrant Prohibited Less than 18 kg
seatbelts under 16
Prince Edward Island 80 km/h or
as posted @
--- + When visibility is 150 m.
or less
Oct. 1-May 31 Mandatory
Quebec 100 km/h
on expwys;
90km/h
on other paved
hwys. @
--- + When conditions warrant Oct. 15-May 1
vehices less
than 3,000 kg
Under age 6, or less than 27 kg
Saskatchewan 80 km/h 911
in major cities
+ When conditions warrant No restrictions Mandatory
Yukon Territory 50 km/h or
as posted @
911 in
Whitehorse only
At all times No restrictions Under age 7; or
less than 18 kg

I = Interstate (1) = Drivers can report drunk drivers (D.U.I) by dialing *384. SEATBELT USE IS MANDATORY IN ALL STATES EXCEPT NEW HAMPSHIRE @ = Radar detectors illegal
All information provided on this page was verified and believed accurate at time of posting. The publisher is not responsible for any changes that occur after publication. The use of emergency cellular numbers may be limited due to terrain, weather or technological limitations.

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