Standard IT Service. LCATs – This labor category type includes the defined IT Service LCATs (see Attachment J-3). Each of the defined Standard IT Service LCATs is further stratified to include four (4) skill levels. These may be modified through the term of this Master Contract to accommodate emerging IT Service LCATs as defined by the market. The Contractor shall utilize the Standard IT Service LCATs to the maximum extent possible. Additional Standard IT Service LCATs may be added over the term of this contract if the GSA GWAC Program approved and appended to the contract via modification by the GSA GWAC PCO. (See Section B.6.3).