Is it okay to use “chairperson” or even just “chair” when conducting business?

According to NAP, organizations should follow the current edition of Robert’s Rules of Order Newly Revised and use the terms that they feel best suits the needs of their particular assemblies.  NAP members addressed this issue at the association’s 41st biennial convention in September, when they adopted a resolution rescinding a 1975 resolution discouraging the use of “chairperson.”