The document discusses the provisions around date of supply under the UAE GST law. It defines the date of supply as the earlier of the following dates: - For goods, the date the goods are transferred, the date the recipient takes possession, or the date any assembly/installation of goods is completed. - For services, the date the services are completed. It also outlines special cases for date of supply, such as for contracts with periodic payments (earliest of invoice date, payment due date, or receipt of payment within one year), vending machines (date funds are collected), deemed supplies (date of supply, disposal or deregistration), and vouchers (date of issuance or redemption).