One of the most significant features of the 1730 inspection system was first introduced in 1713. Primarily through the efforts of Governor Spotswood, an act was passed providing for licensed inspectors at the various warehouses already established. To provide a convenient circulating medium, and one that would not meet with opposition from the English government, these inspectors were authorized to issue negotiable receipts for tobacco inspected and stored at these warehouses. Like many new and untried ideas, this law seemed somewhat radical and met a great deal of opposition. With Colonel William Byrd as their leader, the opposition was able to convince certain British officials that the added expense required by the act imposed an undue hardship on the tobacco trade. This local opposition combined with the pressure of the conservative London merchants caused the act to be vetoed by the Privy Council in 1716. The act of 1712, providing for the regulation of public warehouses, remained in force and became a part of the rather effective inspection system established in 1730. The act was amended in 1720 giving the county courts the authority to order warehouses inconvenient to the landings discontinued. These two pieces of legislation brought all of the public warehouses near convenient landings and made the warehouse movement flexible. From this point on, as the tobacco industry shifted from one area to another, the warehouse movement kept pace. From time to time established warehouses were ordered discontinued, or new ones erected; and occasionally warehouses ordered discontinued were revived. However, it appears that inspection warehouses were not permitted above the Fall Line until after the Revolution.