find out what? how to register it? or the "requirement to register"?
back in the older days, you only really needed to register the bike if you were riding on state or federal OHV areas. "illegal but tolerated" areas, your own backyard, or MX tracks - don't bother. But within the last few years, the MA orv office found a new way to get revenue from anyone with an ORV vehicle: (I believe that...) As long as you own a dirtbike or ATV (even if it's a bike in a bunch of parts in your basement), and even if you ride it ONLY on your own property, you need to register it. It's retarded. But fortunately they don't have a way of enforcing it.
to read up on "how" to register the bike, just go here:
http://www.mass.gov/eea/grants-and-t...s-generic.html
here are the steps:
1.) bring your bill of sale
-OR if you never got one, have a friend make one. If the bike was never registered as an OHV in MA, and you don't have a title, then there's no way for MA to verify who the last registered owner was. So if they don't know, make up a bill of sale for whoever you want.
-back in my day, there was no formal bill of sale...nowadays they have one on their website:
http://www.mass.gov/eea/grants-and-t...aleatvsnow.pdf
2.) pay the sales tax online:
https://wfb.dor.state.ma.us/WebFile/...axDefault.aspx
3.) print out the proof that you paid the sales tax (ST-6) from the DOR website above
4.) bring the ST-6, cash, or check (no credit cards!!) to the OHV office, fill out a form, and you'll walk out with the ORV stickers to affix to the left fork
-back in my day, you filled out the application in the office. Nowadays you can download the pdf:
http://www.mass.gov/eea/grants-and-t...itlingform.pdf
those stickers allow you to ride in any of the 6 state park trail riding areas:
http://www.mass.gov/eea/state-parks-...ing-trail.html
and the federal area:
http://www.nae.usace.army.mil/Missio...illageDam.aspx
The state lands close in november and open in may. The federal area is open year round.
the only way that your registration is checked, is when the rangers do periodic and random inspections of bikes in the parking lots
I don't know if it's actually valid, but back in my day those stickers "technically" made it legal to ride on frozen ponds and lakes too...not sure if it's still true
and I believe the registration requirement technically applies to MX tracks too...but as I understand it, nobody actually does it if they just ride mx
other than that, you can ride at the dirt track in winchendon