Which of the following internal control procedures is not usually performed in the treasurer’s department? a. verifying the accuracy of checks and vouchers. b. controlling the mailing of checks to vendors. c. approving vendors’ invoices for payment. d. canceling payment vouchers when paid

The answer is: C) Approving vendors’ invoices for payment.

Explanation:

Within an organization, the duties of authorizing payments, record keeping and asset custody have to be assigned to separate business units or departments. One single department shouldn't authorize payments and make them. There would be no possible control over what they are doing.

For example, if the treasury department is able to authorize payments, instead of paying $1,000 for an invoice they could pay $50,000 and no one would be able to discover the fraud committed.

agriculture and oil. natural resources, industry.