At least 1 metre of freeboard is required. Freeboard is the height from the top of the water. level (i.e. spillway level) to the top of the wall. 11. Stockpiled topsoil should be spread over. the dam wall and spillway and seeded immediately. with grasses to promote stabilising vegetation.
In Express Checkout, authorizing and processing a payment requires: 1  Setting up the payment authorization. 2  Redirecting the customer to PayPal. 3  Obtaining the customer details.  Confirming the payment 1  authorization. Capturing the payment (future).
1 Stamp the invoice with the Approved For Payment stamp.  If invoice is for a subagreement invoice, make a copy of the invoice with the payment approval statement and send to the PI. They are required to sign the invoice authorizing payment. Digital signatures are accepted. If the PI does not respond, follow up with an email.