This is a test of commonsense. Complete the next sentence:

How to participate in needle exchange programs
Look up a needle exchange program (nep) in your area.
To look for an nep in your area, do some research online. There are online databases that list neps in certain areas, and most organizations have their own websites to help with outreach.
There are neps in 90 countries worldwide, so there may be one nearby. You may also be able to ask your local doctor if he knows of a nep in your area.