Abbreviation definitions?

[Bill A]

In my research I have come across two abbreviations used repeatedly. The terms are used in relation to the acquisition of titles and patches for the army in the UK. I have some conjecture as to the meanings, but would like to confirm (or change) the terms.
1. L.P.O. (Local purchase order?)
2. T.L.P. (Total Local Purchase?)

[54Bty]

I would have gone for 'Temporary Local Purchase', as this could have been used while they sorted out who was going to eventually be reponsible for suppling the item.

[Bill A]

Here is the TLP abbreviation used in context:
The TLP figure of 11598 as notified in my 13/Dist/1/12 dated 13 Oct 43 should be maintained in future.

[54Bty]

OK in that case it would make sence that the Total Local Purchase figure of 11,598 items is to be maintained.

[Bill A]

Found the correct definition for TLP. It is Total Liability Period, which was the number of items for a given period of time. Usually the time period for insignia appears to be 1 year.