Which of the following is NOT one of the three Indefinite-Delivery Contracts?

The correct answer is "Standard Quantity" because it is not recognized as one of the three main types of Indefinite-Delivery Contracts. The three types of Indefinite-Delivery Contracts are:

1. Definite Quantity Contract - This type provides for the delivery of a specific quantity of supplies or services during a specified period, with deliveries being scheduled at predetermined times.

2. Requirements Contract - This contract allows the government to purchase all its actual requirements for supplies or services during the contract term, but it does not specify the exact quantity in advance. It is flexible for the buyer in terms of volume, as it is based on their actual needs.

3. Indefinite Quantity Contract - In this contract, the government acquires supplies or services with no specific quantity specified, but with a minimum and a maximum quantity provided during the contract period. This provides a level of flexibility for both the contractor and the government.

The term "Standard Quantity" does not correspond to any established type of Indefinite-Delivery Contract and is therefore not applicable in this context. Understanding these categories helps to clarify the appropriate mechanisms for contracting for variable needs in government procurement.