American Airlines Center (Dallas Stars stadium) DOES provide a dedicated nursing mothers room (across from Valor Bar & Burger located on the 100 level concourse near section 103), but in case the wait for that room is very long and you need to pump or nurse urgently, the First Aid room is also available
First Aid station locations: Plaza Concourse near Section 111 Terrace Concourse near Section 313
Note: These are NOT official dedicated NHL nursing rooms.
This NHL team and others have been contacted about creating proper hockey stadium nursing rooms and they created one officially for nursing moms.
Note: Report mom-shaming or harassment while nursing in public or near lactation rooms (breastfeeding rooms), at Moms Pump Here mobile site https://www.momspumphere.com