(a) No gas corporation shall discontinue service to any person for nonpayment of bills or for failure to post a required deposit on a Saturday, Sunday, public holiday, or day on which the main business office of the company is not open for business. For purposes of this section, the term public holiday refers to those holidays enumerated in the General Construction Law.
(b) No gas or gas and electric or municipal gas corporation shall discontinue gas service to any residential customer for nonpayment of bills or for failure to post a required deposit on a Friday, or the day immediately preceding a day on which the main business office of the company is not scheduled to be open for business, or the day immediately preceding a public holiday. No such corporation shall discontinue service to any residential customer for nonpayment of bills or for failure to post a required deposit during a two-week period encompassing Christmas and New Year's Day.