(b) "appointed day " means with reference to any area, factory or establishment, the day from which the whole of Chapters IV and V of the Act apply to such area, factory or establishment, as the case may be;

(c) "appropriate Office ", "appropriate 1 [Branch Office]" or "appro­priate Regional Office " shall mean with reference to any action taken under these regulations, such office of the Corporation as may be specified for that purpose under a general or special order of the Corporation;

(d) "Central Rules " means the rules made by the Central Govern­ment under section 95 of the Act; [*] [*]

(g) "employer " means the principal employer as defined in the Act;

(i) "factory or establishment " means a factory or an establis­hment to which the Act applies;

(j) "Form " means a Form appended to these regulations;

(l) "inspector " means a person appointed as such by the Corpora­tion under section 45 of the Act;

(m) "instructions " means instruction or orders issued by the Corpo­ration or by such officer or officers of the Corporation as may be authorised by the Corporation in this behalf;

(n) "Insurance Medical Officer " means a medical practitioner appointed as such to provide medical benefit and to perform such other functions as may be assigned to him and shall be deemed to be a duly appointed medical practitioner for the purposes of Chapter V of the Act;

(o) "Insurance Number " means a number allotted by the appropriate [***] Office to an employee for the purposes of the Act, the rules and these regulations;

(p) ["Branch Office "] and "Regional Office " shall mean, according to the context, such subordinate office of the Corporation set up at such place and with such jurisdiction and functions as the Corpo­ration may, from time to time, determine;

(q) ["Branch Manager "] means a person appointed by the Corpo­ration as such or the officer-in-charge of a 3 [Branch Office];

(r) "State Rules " means the rules made by a State Government under section 96 of the Act;

(s) "Regional Director " means a person appointed by the Corpora­tion as such for a specified region;

(t) "Registered Midwife " means a person who is registered as a midwife under any law in force in any State providing for regis­tration of nurses and midwives;

(u) "Rules " means rules made by the Central or a State Government under the Act;

(v) "specified " means specified by instructions issued from time to time by the Corporation or any authorised officer;

(w) "year " means a calendar year except when specifically stated otherwise;

(x) all other words and expressions have the meanings respectively assigned to them in the Act or the rules, as the case may be.