Sadly, there is no published curriculum. There are no district standards. There is no district policy on subject and grade acceleration, although the principal is philosophically opposed to it. (He also claims subject acceleration doesn't work with the schedule.)
You find this through the state, not the district. The curriculum standards are here:
http://www.nj.gov/education/aps/cccs/A few things you'll find directs you back to the district. A quick google search found this:
http://www.state.nj.us/education/aps/cccs/g_and_t_req.htmYou would get your school's board approved gifted and talented program description from the superintendent, not the school board. Often, this is best done by asking (nicely! sweetly!) for the policy from an administrative assistant in the superintendent's office.
Edit: Scheduling *is* hard for subject accelerations. Often times the hour that a given topic is taught has to differ between grade levels because of the needs of intervention services. If there's one math IS, then that person has to do 2nd grade math intervention at a different hour as 3rd grade math intervention, fixing those two math hours for any classrooms sending students to intervention.
There are some creative solutions to this, like putting specials into the mix, having a child go to math during the 2nd grade specials hour, and then doing specials with a different grade level during the 2nd grade math hour.
This stuff is always easiest to schedule for a new school year, so if you seriously want to pursue a subject acceleration, your efforts might be best spent getting all ducks in a row now so that it can happen next year.