Illinois Additional Proof of Delivery (POD) is a document used in the state of Illinois for commercial and residential transactions. It is required by state law to document that certain goods or services have been delivered and accepted by the customer. POD is a legal document that establishes proof of delivery of documentation, such as contracts, invoices, or other items. It can also be used to document the receipt of goods or services, such as construction materials or a service contract. There are two types of Illinois Additional Proof of Delivery: in-person delivery and electronic delivery. In-person delivery requires the customer to physically sign the document to provide proof of delivery. Electronic delivery requires the customer to electronically sign or verify the document to provide proof of delivery.