call the insurance company that does their fleet

actually a forklift is more of a heavy equipment or farm equipment status and does not fall under the same highway laws as motor vehicles (trucks or cars).

i dont think lifttrucks apply here

check out their website, PennDOT does more than just maintain roads
they deal with all aspects of highway traffic and safety and maintenance. NCDOT is the same way here in North Carolina.
check thier website, they do have documentation on vehicle registrations and all sorts of other info.

not saying the highway patrol dept wouldn't be a good place to start though because i'm sure they could set you in the right direction.

as i mentioned before, the company i do work for did not have to tag thier lifts, all that was required is they they have all the necessary equipment on them for highway use, now if they customer had to get permits to drive on the road? i dont know for sure, that much you would have to ask about from the local DOT or highway patrol dept.

ULTIMATELY it's going to be the local police or State troopers that would be issuing any citations for anything so I would go to the source......PennDot just Maintains and plows the roads and are not a legal authority on motor vehicle laws.

check with PennDOT

i have customers that have trucks that cross highways that are not required to be tagged but they are required to have all the necessary safety equipment such as lights , turn signals etc. As for any registration fees or highways fees, i'm not aware of any.

The situation is that the customer has been crossing a fairly busy road for years- doing so with flagmen and the like. The problem now is that the company was bought by another company that teaches safety & sells safety products.

Upper management wants a written outline of every procedure. Since crossing a public road with a unlicensed, uninsured & unregistered forklift isn't exactly legal- no one will put their name on such an outline. Now they want me to find out how to legally cross the street.

I do know I can contact the state police/ notaries/ etc, I was hoping someone had been down this road & could point me in the right direction

Oh geez! Circumstances like this are sure to be full of conditions and provisions and what ifs. The age old question of "Why did the forklift cross the road?"
A conditional point may be that a forklift is permitted to cross a road provided that it is doing so because the company has facilities on both sides of of that road and it is necessary for forklift traffic to cross in the course of daily business activities.
But simply stating that does not mean the governing authorities permit such activity carte blanche.
I have heard remarks about agriculture machinery being permitted to travel upon "rural roads" for a distance not exceeding 1,000 feet (so farmers may work discontiguous but nearby properties). Any machinery on a road in such travels must display at least a reflective tri-angular "Slow moving vehicle" sign and have lights if moving in darkness.
Here in Tennessee where heavy construction machinery and/or truck traffic must cross a public road, at least 1 flagman is required to be in place to halt traffic on the public road when construction vehicles are approaching the cross point, 2 flagmen if the public road is a divided highway type of road.

I can comment on one circumstance that I am personally familiar with. It does not involve forklifts but it does involve legally operating vehicles on a public road surface that "ARE NOT LICENSED" for highway travel.
I work for a freight company and our local facility owns a "parking lot" that is not directly connected to our main campus. This lot is used to park trailers that have been put up for sale. To access this lot we must drive 300 feet on a public road from our main entrance gate to the parking lot gate. The trailers are moved using yard tractors that are not licensed for highway travel. The only stipulation we have been told that must be adhered to is that all inter-vehicular light cords and air brake hoses must be connected when on the highway surface.
I do know that lots and lots of forklifts routinely operate on and across "back streets and alleys" to load and unload trucks/trailers.
And here in the U.S. we have the ubiquitous 3 wheeler forklifts carried on the tails of trucks/trailers to unload construction materials. Those 3 wheelers often have to operate on and across roads to deliver the goods to a site. I don't see those 3 wheelers displaying the lighting or license plates of a "street legal" vehicle.
Back to the question of crossing a road with a forklift.
Has this customer been cited/ticketed by police for crossing the road, or is this activity something the customer is wanting to commence doing on a regular basis?
If the road/highway in question is a major thoroughfare with heavy traffic it seems to me that the questions should not be so much about being able to do this "legally" but instead about "how do we do this without getting somebody injured or killed?".

I would as the local police Dept. OR call the Local PA State police Barracks and get the info right from them......I know of places close to me that have BIG yard forklifts that cross the road frequently but don't know if thy are registered or licensed.

Over here in the UK they can IF the truck meet's the correct legal spec to be allowed on the road, plus the compulsory insurance, registration plates, tax disc etc.
Normally it's also either remove the fork's OR fit the special road guard on.