Here you go.
http://www.dol.wa.gov/vehicleregistration/watv.html
I made my UTV street legal.
Washington State - HB 1632 ATV/UTV Access bill
Good article copied below:
Washington State - HB 1632 ATV/UTV Access bill passed
Weston Johnson
Seabeck, WA
JAN 1, 2016 — The bill creates a new class of recreational vehicle (a wheeled all-terrain vehicle, or WATV) and provides motorized access to public lands while promoting responsible riding practices.
We want to clarify that the intent is to increase motorized access to public lands in rural areas, meaning trail connectivity, USFS roads, and remote/primitive roads -- not major metro areas!
Effective 7/28/2013, the mandatory ORV registration decal will be replaced by a motorcycle-sized metal identification plate which must be displayed on the rear of all registered ORVs and UTVs (side-by-sides).
An off-road tab will be issued to you; it must be affixed to the metal plate and renewed annually.
The metal plate must be replaced every 7 years for a nominal fee.
Adults with a driver’s license will have the option to register their ATV or UTV for restricted on-road use for an additional fee of $12, which will go into a new Highway Safety Account. Funds in this new account will be used to offset road/trail signage, education and law enforcement. A brightly-colored on-road tab will be issued; it must be affixed to the metal identification plate and renewed annually.
Safety equipment is necessary for this license:
ATVs
Two Headlights
One tail/stop lamp
Turn signals for use after dark
Reflectors
One handlebar mirror providing a complete view of the highway for a distance of 200 ft.
A windshield (unless goggles or face shield are worn)
A horn
Brakes in working order
A spark arrestor and muffling device (86 db limit on the “A” scale; SAE test procedure J 331a)
UTVs
Two headlights
Two tail/stop lights
Turn signals for use after dark
Reflectors
Two mirrors providing a complete view of the highway for a distance of 200 ft.
A windshield (unless goggles or face shield(s) are worn
A horn
Brakes in working order
Seatbelts
A spark arrestor and muffling device (86 db limit on the “A” scale; SAE test procedure J 331a)
A dealer/repair shop safety inspection (with $50 fee) and liability release are also required.
The DoL may develop and implement an online safety training course for people that register WATVs for on-road use.
Will you be able to ride everywhere? No, but cities, towns, counties or any state agency may regulate the operation of WATVs on public lands under their jurisdiction and on streets, roads or highways within their boundaries.
In counties with a population of 15,000 or less, public roads with a speed limit of 35mph or less are automatically open to WATVs with the on-road tab (Columbia, Ferry, Garfield, Lincoln, Pend Oreille, Skamania and Wahkiakum counties).
The legislative body of these counties can designate roadways or highways unsuitable for use by WATVs; these must be listed publicly and made accessible from the main page of the county website.
All counties with a population of 15,000 or more may, by ordinance, approve the operation of WATVs on public roadways with a speed limit of 35mph or less.
The legislative body of a city or town with a population of less than 3,000 persons may, by ordinance, designate a street or highway within its boundaries to be suitable for use by WATVs.
Public roadways designated either open or closed on January 1, 2013 remain either open or closed.
In short, control is given to local management: cities, towns, counties or state agencies. There are restrictions on riding on and crossing state highways. Public lands/roads are not forced open, and there’s nothing in the bill that opens private property or private roads.
Very soon USFS roads open to the public <35mph will be open to WATVs with on-road registration – opening thousands of miles to WATVs! Please be patient with the USFS as they adapt to this new rule.
We will also need to work with local managers to open roads/trails; these folks have experience and can help:
CBORVC: Larry Smith; Skamania & Cowlitz counties: Mike Hayden; King and Snohomish counties: Ted Jackson; Pierce & Thurston counties: Gary Johnson; Spokane area: Gary Prewitt
The bill leaves all provisions of "the Hinkle Bill" intact (RCW 46.09.360 and RCW 46.09.450).
The bill cites existing ATV legislation about how and where you can ride (Chapter 46.09 RCW). For years, it has been illegal to trespass, create new trails or "ride in such a manner as to unreasonably expose the underlying soil, creating erosion or injuring trees, crops or other vegetation."
The bill does waive the police presence rule, though, meaning that an officer doesn’t have to witness a violation in order to cite you for it. If someone can provide conclusive evidence (such as videos or photos) tying you to an infraction then you can be cited, and the metal identification plate helps identify you and your WATV.
Violations are considered traffic infractions.
The penalty for false reporting is a gross misdemeanor, and carries a stronger penalty than a traffic infraction (RCW 9A.20.010 and RCW 9A.84.040).
Ride responsibly! Stay on roads/trails and out of water; don’t trespass; don’t damage natural resources!