Section 1. In sections one to eleven, inclusive, the following words shall have the following meanings:--
"Corporation'' or "company'', every person, partnership, association or corporation, other than a municipal corporation, and other than a landlord supplying his tenant, engaged in the distribution and sale of water in the commonwealth through its pipes or mains.
[ Definition of "Department'' effective until April 10, 2007. For text effective April 10, 2007, see below.]
"Department'', the department of telecommunications and energy.
[ Definition of "Department'' as amended by 2007, 19, Sec. 41 effective April 10, 2007. See 2007, 19, Sec. 54. For text effective until April 10, 2007, see above.]
"Department'', the department of public utilities.