VPRS 16355 List of Primary and Secondary Indexable Headings and an Alphabetical Guide to Subject Index Headings

The record keeping system upon which the General Correspondence Files, Single Number System was based is set down in the List of Indexable Headings and Guide to List. This document includes:- A Glossary of Terms- The Application of the Registry System, including Classification, Registration, Movements and Indexing of Files- The Handling of Inwards Mail including Internal Distribution- The duties and procedure to Classifying Papers- The duties and procedures for the Registration of Files- The duties and procedure for the Indexing of Information- The duties and procedures for Post Action Examination- The duties and procedure for the Searching of Files- The Correspondence Registry list of Indexable Headings- An Alphabetical Subject IndexIn 2004 the Commission replaced the manual record keeping system with an electronic record keeping system known as TRIM.

单编号系统通用通信档案所依托的档案管理系统，载于《可标题目录列表及编制指南》（List of Indexable Headings and Guide to List）。该文件包含以下内容：
- 《术语表》
- 《档案管理系统的应用》，涵盖档案分类、登记、流转与索引编制
- 《外来邮件处理规程》，含内部分发流程
- 《文件分类的职责与操作流程》
- 《档案登记的职责与操作流程》
- 《信息索引编制的职责与操作流程》
- 《事后核查的职责与操作流程》
- 《档案检索的职责与操作流程》
- 《通信档案管理可标题目录列表》
- 《按字母排序的主题索引》
2004年，该委员会将原手动档案管理系统替换为名为TRIM的电子档案管理系统。