Access to all Starfleet computer systems is highly regulated. A standard set of authorization codes have been programmed into the starboard and engineering computer cores of all ships in order to stop any undesired access to the systems.

Alpha-Two:

Unlimited access to all ship's records, systems, commands and computers

Alpha-One:

Unlimited access to all ship's records, systems and computers. No access to ship localized command functions

Beta-Two:

Unlimited access to all ship's records, systems and computers. Limited access to command functions (except if stated otherwise by Commanding Officer).

Beta-One:

Unlimited access to all ship's records, and computers. Limited access to command functions (except if stated otherwise by Commanding Officer). Access to ship systems is limited to duty related functions

Delta-Two:

Limited access to all ship's records, systems, commands and computers. Access Limited to duty related functions

Delta-One:

Limited access to all ship's records, and computers. Access limited to job related functions

The following codes have been assigned to:

Commanding Officer:

Alpha-Two

Executive Officer:

Alpha-Two

Chief of Operations:

Alpha-One

Intelligence Officer:

Beta-Two

Security Chief:

Beta-Two

Chief Engineering Officer:

Beta-Two

Chief Medical Officer:

Beta-One

Helm Officer:

Beta-One

Science Officers:

Beta-One

Counselor:

Beta-One

The Commanding Officer reserves the privilege of permitting limited access to unspecified section of the ship to any personnel whose functions, in the eyes of the CO, require it