All darts must be made using a 1/2" diameter 1/8" thick adhesive-backed felt bumper from McMaster-Carr, part#8771K12.
Darts may only be weighted using a single #8 or #6 washer, which must be entirely covered by the felt bumper.
You can also use the other available felt pad colors in that size, but green is generally accepted to hold together better than the others.
Unmodified stock darts are also permitted, but you're probably going to be horribly outclassed if you plan to use stock darts all day.
I recommend using Ryan's Dart Guide, and you may find additional useful info in my Dartsmithing Tips thread.
If you are unable to order the necessary parts from McMaster, please contact me via PM and I will provide you with an alternative source of materials. Only contact me about this if you have no way to order from McMaster (for example, if you live in Canada).
*Safety of course is a concern here, but that is only a part of the reason why we require the use of slugs in NJ. Slugs are also required because they level the playing field and allow us to use a wider variety of blasters without as much variation in range and performance. Nowhere is this more important than Apoc. Nerfers travel in from all over the
In the end, this is really what it comes down to: There are a lot of different ways to win a round. Maybe you're a better shot, or a more aggressive player. Perhaps you are a good team leader, or you've modded your blaster to perfectly suit your style on the field. But of all the reasons to win, "My darts were heavier" is one of the lamest.
Feel free to ask questions, but understand that these rules are not negotiable.