Burden rate is defined as the total indirect contract costs, calculated as a percentage of the construction company's direct labor. In other words, for every dollar of direct labor allocated to a contract, burden is applied as a percentage of the direct labor. But before a contactor can accurately calculate burden rate, all contract costs assumed by the company must be fully accounted for and factored into the final burden rate equation.
tack (plural tacks) 1  A small nail with a flat head. 2  A thumbtack. ( 3 sewing) A loose seam used to temporarily fasten pieces of cloth. ( nautical) The lower corner on the leading edge of a sail relative to the direction of the 1  wind. (nautical) A course or heading that enables a sailing vessel to head upwind.
Tie Tack. The tie tack is very different in form and function from both the tie bar and the tie clip. As you can see on the picture on the left, a complete tie tack is made up of two different parts: The decorative part, the pin, on the left and the back, or base, with a chain attached to it on the right.