Preservation of records at branch offices is as shown below.

1	Branch Office account (Pa.6)	3 years after they are used
2	BO Journal (Pa-5),BO slips	3 years after they are used
3	Book of BO receipts(Ms-87(a)	2 years after they are used
4	Regd lists/Parcel lists/Mail lists	2 years after they are used
5	Invoices received from P.S.D	3 years.
6	BO Slips	2 years.
7	Order book/Stock book	To be destroyed after special permission from divisional head
8	Postman book (ms-87)	2 years
9	Book of postmarks	2 years
10	Deptl.Circulars	Permanent
11	Enumeration returns	5 years
12	Yearly value returns(yvr)	5 years

(Rule 21 of Book of Rules for Branch Offices)

Note: The records i.e order book, stock book, postman book and book of postmarks should be destroyed by fire or otherwise, in such a manner that they may not be used again. Other record should be torn up and sold as waste paper.