Yep, Kaz is right. Check the BFWA website (link through from ABA) for info about what they have to do

I never felt weird but my workplace is BFWA accredited and has a policy for nursing mothers. We have two separate rooms in my building that are "parents rooms" that are expressly for lactating mothers (pun intended ). They are great - door that locks with electronic access granted only upon request, so random people can't wander in, one room with microwave, sink, power points and lockers, then a separate room with a big comfy arm chair, power points and a TV - so you can catch up on Dr Phil apparently

I did feel a bit odd when I was offsite - I basically had to book a meeting room for two half hour periods and then go in there and wedge the door shut and hope no one walked in on me. It wasn't the best and I didn't persist long.