1. Q. In very large walk in closets, is there any exception for enclosed lens fixtures?  If so, are there any guidelines for specific dimensions where an open trim recessed fixture can be used?

A. Yes. Code Section 410.8.
(Tri-County Electrical Code Forum April 19, 2001) .

2. Q. The list we receive from the Construction Monitor indicates that rowhouses are residential. Should we assume if they are listed as such that we can wire for the central vacuum without a licensed person?

A. No, though the rowhouses are wired as residential units, they are considered commercial structures.
(August 8,2002 Tri-County Electrical Code Forum)