The funding of USG programs is subject to annual U.S. congressional appropriations. Many of the USG programs in which we or our customers participate may extend for several years. Long-term government contracts and related orders are subject to cancellation if appropriations for subsequent performance periods are not made. In addition, the USG may modify, curtail, or terminate its contracts and subcontracts without prior notice at its convenience upon payment for work done and commitments made at the time of termination. The termination of funding for a USG program, or any modification or curtailment of one of our major USG programs or contracts, would result in a loss of anticipated future revenue attributable to that program, which could have an adverse effect on our operations, financial condition, or demand for our products and services.
Our government contracts are primarily fixed-price contracts where we bear a significant portion of the risk of cost overruns. These types of government contracts are priced, in part, on cost and scheduling estimates that are based on assumptions including prices and availability of experienced labor, equipment, and materials as well as productivity, performance, and future economic conditions. If these estimates prove inaccurate, if there are errors or ambiguities as to contract specifications, or if circumstances change due to, among other reasons, unanticipated technical problems, poor project execution, difficulties in obtaining permits or approvals, changes in local laws or labor conditions, weather delays, changes in the costs of equipment and materials, or our suppliers' or subcontractors' inability to perform, then cost overruns may occur. Our failure to accurately estimate the resources and time required for fixed-price contracts or our failure to complete our contractual obligations within a specified time frame or cost estimate could result in reduced profits or, in certain cases, a loss for that contract. If the contract is significant, or we encounter issues that impact multiple contracts, cost overruns could have a material adverse effect on our business, financial condition and results of operations.
Our government contract activities are subject to audits by USG agencies, including agency Inspectors General. If any audit, inquiry, or investigation uncovers improper or illegal activities, we may be subject to civil and criminal penalties and administrative sanctions, including termination of contracts, suspension of payments, fines, and suspension or debarment from doing business with the USG. In addition, we rely on certain third-party business strategy consultants to assist us in procuring new opportunities to compete for and receive USG contracts. If these contractors were to engage in any improper or illegal activities, our USG contracts could be terminated and we could be prohibited from obtaining government contract in the future, regardless of whether we had involvement or knowledge of any such activities. We also could suffer reputational harm if allegations of impropriety were made against us, even if such allegations are later determined to be false. We have not been audited in the past by the USG but expect that we may be audited in the future.
We are sometimes subject to potential USG review of our business and security practices due to our participation in government contracts. Any such inquiry or investigation could potentially result in a material adverse effect on our results of operations and financial condition. Our USG business also is subject to specific procurement regulations and other requirements. These requirements, although customary in USG contracts, increase our performance and compliance costs. For example, we are required to comply with the DMEA Trust Accreditation process, the U.S. International Traffic in Arms Regulations ("ITAR"), the U.S. Export Administration Regulations ("EAR"), as well as labor requirements, pricing justifications, cybersecurity requirements, and other federal contractor requirements imposed by the Federal Acquisition Regulation ("FAR"), and the Defense FAR Supplement. In addition, we are subject to certain registration requirements, including registration with the Directorate of Defense Trade Controls and consortium registration or membership requirements. These compliance costs might further increase in the future, reducing our margins, which could have a negative effect on our financial condition. Failure to comply with these regulations and requirements could lead to suspension or debarment, for cause, from USG contracting or subcontracting for a period of time and could have a material adverse effect on our reputation and ability to secure future USG contracts.
Some of our subsidiaries hold USG-issued facility security clearances and certain of our employees have qualified for and hold USG-issued personnel security clearances necessary to qualify for and ultimately perform certain USG contracts. Obtaining and maintaining security clearances for employees involves lengthy processes, and it is difficult to identify, recruit, and retain employees who already hold security clearances. If these employees are unable to obtain or retain security clearances or if our employees who hold security clearances terminate employment with us and we are unable to find replacements with equivalent security clearances, we may be unable to perform our obligations to customers whose work requires cleared employees, or such customers could terminate their contracts or decide not to renew them upon their expiration. The USG could also "invalidate" our facility security clearances for several reasons including unmitigated foreign ownership, control or influence, mishandling of classified materials, or failure to properly report required activities. An inability to obtain or retain our facility security clearances or engage employees with the required personnel security clearances for a particular contract could disqualify us from bidding for and winning new contracts with security requirements as well as result in the termination of any existing contracts requiring such security clearances.