Description
This document describes how a Track Occupancy Authority must be compiled, issued, cancelled, fulfilled and managed.
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Introduction
NRF 002 Track Occupancy Authority (TOA) is used to authorise occupancy of track, within specified limits, for an agreed period.
Numbering forms
Signallers issuing a TOA Form must number the form consecutively on a pad-by-pad basis.
Mandatory items
The following items must be completed:
1 TOA Number
2 Purpose
3 TOA limits
4 Assurances
9 Authorised by Network Controller
10 Issued to and read back by the Protection Officer and Signallers
Item 3 – TOA limits
Give clear details of the TOA limits as locations or other specified limits.
Item 4 – Assurances
Review each assurance and:
- write NA (Not Applicable) in the assurance box
if the assurance has been considered but is not applicable in this instance, or - write Y (Yes) in the assurances box
when the assurance is given and complete the details.
The following items are optional:
5 Joint occupancy following a unidirectional rail traffic movement
6 Joint occupancy with disabled rail traffic
7 Joint occupancy with stabled rail traffic
8 Joint occupancy with another TOA or a Track Work Authority (TWA)
11 TOA extension
12 Relieving Protection Officer
Review each item, and:
- put a cross in the numbered box
if the item does not apply in this instance, or - tick the numbered box
if the item applies in this instance and complete the details.
Complete Item 11 if a TOA time extension is authorised.
Complete Item 12 when a Protection Officer is relieved.
Item 5 – Joint occupancy following a rail traffic movement
If the item applies, tick the numbered box 
and:
- write NA (Not Applicable) in the assurance box if the assurance has been considered but is not applicable, or
- write Y (Yes) in the assurances box when the assurance is given.
Item 6 – Joint occupancy with disabled rail traffic
If the item applies, tick the numbered box 
and write Y (Yes) in the assurances box when the assurance is given.
Item 7 – Joint occupancy with stabled rail traffic
If the item applies, tick the numbered box 
and write Y (Yes) in the assurances box when the assurance is given.
Item 8 – Joint occupancy with another TOA or a Track Work Authority (TWA)
If the item applies, tick the numbered box 
and write Y (Yes) in the assurance box when the assurance is given.
Item 11 – TOA extension
If a TOA is extended, tick the numbered box 
and record the extension and authorisation details.
Item 12 – Relieving Protection Officer
If the holder of a TOA is relieved by another Protection Officer, tick the numbered box 
and record the relieving Protection Officer’s Details.
