How to write an invoice receipt notice?

The invoice receiving notice is written as follows:

1, to all departments, in order to simplify the company's processes, clarify responsibilities, and ensure that the company's invoices and funds can be collected in a timely and complete manner, the following management regulations are formulated for invoice signing.

2. List the things that need to be done.

Please explain when this regulation will be implemented, and hope all departments will follow it.