So I'm new to this, just got my lic. and don't want to get myself in trouble right off the bat...

So this might seem like a dumb question but I found this repeater near me
Amateur radio N1OMJ repeater information on 449.825 in WOBURN, MASSACHUSETTS
Can I just program it in and start using it?
It says open to all.
Found this one also
It doesn't say anything
Amateur radio WA1TFJ repeater information on 145.430 in Belmont, MASSACHUSETTS
thanks
So this might seem like a dumb question but I found this repeater near me
Amateur radio N1OMJ repeater information on 449.825 in WOBURN, MASSACHUSETTS
Can I just program it in and start using it?
It says open to all.
Found this one also
It doesn't say anything
Amateur radio WA1TFJ repeater information on 145.430 in Belmont, MASSACHUSETTS
thanks