First Solo:
The main requirements for the first solo flight are:

• Be at least 16 years of age
• Hold a current Class 2 (minimum) Medical Certificate
• Speak, read and understand the English language sufficiently
• Have demonstrated competence in the various aspects
  of flight outlined in Part 61.105 of the Civil Aviation Rules

  

Recreational Pilot's Licence (RPL):

These are outlined in AC61-20, but the main points are listed below

The aplicant must:

• Be at least 17 years of age
• Hold a medical certificate issued in accordance with Land Transport (Driver Licensing) Rule 1999.
• Have passed all six PPL theory exams
• Have a minimum of 50 hours of flying experience (as per PPL)

Private Pilot's Licence (PPL):

These are outlined in AC61-1.3, but the main points are listed below.

The applicant must:

• Hold a current Class 2 (minimum) Medical Certificate
• Be at least 17 years of age
• Pass (70%) the PPL theory examinations which are Aviation Law, Meteorology, Flight Radio, Navigation, Human Factors, Aircraft Technology
• Pass the ASL Aviation English test, and be issued with an ICAO level 4 to 6 certificate
• Pass the CAA’s “Fit and Proper Person” assessment
• Have a minimum of 40 hours flight training, or if cross country privileges are
  wanted, a minimum of 50 hours including cross country experience
• Have a minimum of 15 hours solo flight time
• Have a minimum of 5 hours instrument flying

Commercial Pilot's Licence (CPL):

These are outlined in AC61-1.5, but the main points are listed below.

The applicant must:

• A current Class 1 Medical Certificate
• Be at least 18 years of age
• Hold a current Private Pilot’s Licence
• Pass (70%) the CPL theory examinations which are Aviation Law, Meteorology, Principles of Flight, Navigation, Human Factors, Aircraft Technology
• Pass the ASL Aviation English test, and be issued with an ICAO level 4 to 6 certificate
• Pass the CAA’s “Fit and Proper Person” assessment
• Have a minimum of 100 hours flight time in aeroplanes as PIC
• Have a minimum of 200 hours flight time in aeroplanes (see AC61-1.5 for more details)
• 30 hours of cross country navigation (of which at least 20 hours must be dual training)
• 10 hours of instrument flying (of which at least 5 must be dual instrument flying in aeroplanes)
• For commercial privileges (by night), at least 10 hours total flight time comprising of at least 4 hours dual, 5 hours PIC and at least 10 takeoff's and landings as PIC

 C-Category Instructor Rating (C-Cat):

These are outlined in AC61-1.18, but the main points are listed below.

The applicant must:

• Hold a current Commercial Pilots Licence
• Have a minimum of 200 hours total flight time
• Have a minimum of 150 hours as Pilot in Command
• Have a minimum of 40 hours as Pilot in Command on cross country flights
• Have completed at least 25 hours of advanced dual instructor training
• Have a minimum of 15 hours Instrument flight time
• Have completed at least one hour of spin recovery training
• Have completed an approved Instructional Techniques Course  
• Pass the CAA’s fit and proper person assessment

Instrument Rating (IR):

These are outlined in AC61-17, but the main points are listed below.

The applicant must:

• Hold a current pilots licence (RPL not applicable)
• Have a minimum of 50 hours as Pilot in Command on cross country
• Have a minimum of 40 hours instrument flight time
• Have a minimum of 10 hours dual instruction on cross country flights under Instrument Flight Rules
• Have passed (70%) the Instrument Rating theory exams covering, Law,
• Navigation, Instruments and Navigation Aids
• Pass the CAA’s fit and proper person assessment
• PPL holders only must also pass Human Factors and Meteorology exams at CPL level.

“To invent an airplane is nothing.  To build one is something.  To fly is everything”.
– Otto Lilienthal