Presently, Rule R746-310 incorporates by reference the 2007 edition of the National Electrical Safety Code (NESC) and 2001 and 2006 editions of the American National Standards Institute's (ANSI) electricity industry codes. More recent versions of these codes have been adopted by their publishers. The rule presently incorporates a portion of the 2007 edition of the NESC, specifically "C2-2017", which covers basic provisions for safeguarding persons from hazards arising from the installation, operation, or maintenance of certain electric facilities and work rules for the construction, maintenance, and operation of those facilities. The 2017 version updates certain definitions, simplifies minimum approach tables and voltage exposure for arc flash, and clarifies certain engineering parameters with respect to wire attention and ungrounded portions of guys and swimming pools. With respect to the ANSI, the rule presently incorporates sections "C12.1-2001" and "C84.1-2006". The proposed change would update these to "C12.1-2014" and "C84.1-2011", respectively. The latter four digits in each section indicate the year the publisher adopted the referenced version. C12.1-2014 establishes acceptable performance criteria for new types of AC watthour meters, demand meters, demand registers, pulse devices, and auxiliary devices. The 2014 update contains several revisions to respond to changes in the industry, addressing performance requirements, accuracy tests, the effect of high voltage line surges, the effect of operating temperature, the effective of relative humidity, and establishing a testing schedule. C84.1-2011 establishes nominal voltage ratings and operating tolerances for 60-hertz electric power systems above 100 volts. It includes preferred voltage ratings up to and including 1,200 kV maximum system voltage, as defined in the standard. The 2011 edition updates a table to reflect changes in lighting characteristics.