The U.S. Food and Drug Administration may in the future determine that our technology solutions are subject to the Federal Food, Drug, and Cosmetic Act, and we may face additional costs and risks as a result.
There is a risk that our existing and future offerings, including the operational/technical component of our business model, such as our decision support software incorporating machine learning, meets the definition of a medical device under the Federal Food, Drug, and Cosmetic Act (FDCA). Medical devices are subject to extensive regulation by the FDA under the FDCA. Under the FDCA, medical devices include any instrument, apparatus, machine, contrivance, or other similar or related articles that is intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease. FDA regulations govern among other things, product development, testing, manufacture, packaging, labeling, storage, clearance or approval, advertising and promotion, sales and distribution, and import and export.
Failure to appropriately seek FDA approval or noncompliance with applicable FDA requirements can result in, among other things, public warning letters, fines, injunctions, civil penalties, recall or seizure of products, total or partial suspension of production, failure of the FDA to grant marketing approvals, withdrawal of marketing approvals, a recommendation by the FDA to disallow us from entering into government contracts, and criminal prosecutions. The FDA also has the authority to request repair, replace, or refund of the cost of any device.
Changes in tax laws or regulations that are applied adversely to us or our customers may have a material adverse effect on our business, cash flow, financial condition, or results of operations.
The Tax Act enacted many significant changes to the U.S. tax laws. Future guidance from the Internal Revenue Service and other tax authorities with respect to the Tax Act may affect us, and certain aspects of the Tax Act could be repealed or modified in future legislation. In addition, in response to the COVID-19 pandemic, the CARES Act was signed into law in March 2020. The CARES Act modifies certain of the changes made by the Tax Act. Changes in corporate tax rates, the realization of net deferred tax assets relating to our U.S. operations, and the deductibility of expenses under the Tax Act, as amended by the CARES Act, or future tax reform legislation could have a material impact on the value of our deferred tax assets, could result in significant one-time charges in the current or future taxable years, and could increase our future U.S. tax expense. The foregoing items, as well as any other future changes in tax laws, could have a material adverse effect on our business, cash flow, financial condition, or results of operations. In addition, it is uncertain if and to what extent various states will conform to the Tax Act, as amended by the CARES Act, or any newly enacted federal tax legislation.
Taxing authorities may successfully assert that we should have collected or in the future should collect sales and use, value-added, or similar taxes, and we could be subject to liability with respect to past or future sales, which could adversely affect our results of operations.
We do not collect sales and use, value-added, and similar taxes in all jurisdictions in which we have sales, based on our understanding that such taxes are not applicable. Sales and use, value-added, and similar tax laws and rates vary greatly by jurisdiction. Certain jurisdictions in which we do not collect such taxes may assert that such taxes are applicable, or jurisdictions in which we collect sales tax may assert that we have under-collected sales tax, either of which could result in tax assessments, penalties, and interest, and we may be required to collect such taxes in the future. Although our customer contracts typically provide that our customers must pay all applicable sales and similar taxes, our customers may be reluctant to pay back-taxes and associated interest and penalties, or we may determine that it would not be commercially feasible to seek reimbursement from such customers, in which event any such tax assessments, penalties, and interest, or future requirements may adversely affect our results of operations.
Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.
As of February 29, 2020, we had U.S. federal net operating loss carryforwards (NOLs), of $272.8 million and state NOLs of $258.9 million. Under the Tax Act, as modified by the CARES Act, unused NOLs for the tax year ended February 29, 2020 and prior tax years will carry forward to offset future taxable income, if any, until such unused losses expire. Unused losses generated in taxable years beginning after December 31, 2017, which would be our tax year ending February 28, 2018 and thereafter, pursuant to the Tax Act, will not expire and may be carried forward indefinitely but will