The NAD, and this site, uses a lot of defined terms.  These terms can be confusing.  A full list of the NAD's defined terms can be found in the Number Administration Deed and Number Allocation Rules.  However, the commonly used terms are included below for your reference:

Applicant

A person who requests a Code Block or holds an Allocated Code.

General Principles

Means the General Principles, as set out in the NAD Deed. 

Local Interconnect Calling Area, or LICA

A geographic "home" area associated with a Code Block, which is named as a LICA in the Schedule of LICAs in the Rules.

New Zealand Resident

Means, in relation to a natural person, that the person is a New Zealand citizen or ordinarily resident in New Zealand, or, in relation to a body corporate, that is incorporated in New Zealand, or that it is incorporated outside New Zealand but has a place of business in New Zealand. A person has a place of business in New Zealand only if that person can be served in accordance with rule 6.13(1) of the High Court Rules.

Number Allocation Rules

Means the rules applying to the allocation of the telecommunication numbers subject to the Deed.

Numbering Principles

Means the Numbering Principles set out in the NAD Deed.

Deed of Accession

A deed which a person executes in order to join the NAD as a new Party.

Local Calling Area, or LCA

A geographic area defined by a carrier where calls that both originate and terminate within that area attract a local call charge.

Management Committee

Means the Management Committee of the NAD, consisting of a representative from each NAD member.

Number Administrator

Means the Number Administrator for the time being appointed under the Deed.  

Number Register

Means the entire register of Code Blocks, their Applicants, Code Status (as defined in the Rules) and other information required by the Rules.

Public Switched Telecommunications Services

Means a public service offered by a Service Provider for telecommunication between end-users.  In general, a Public Switched Telecommunication Service enables end-users to communicate with end-users of the same or any other Public Switched Telecommunication Service over inter-connected Public Switched Telecommunications Networks.