We are subject to various federal, state, and local environmental laws, building and zoning requirements, employment and labor laws and other governmental regulations regarding the operation of our business. The compliance costs and operational burdens associated with applicable federal, state, and local environmental laws and regulations could be significant. For example, we are subject to rules governing the handling, storage and disposal of hazardous substances contained in some of the products such as motor oil that we sell and use at our stores, the recycling of batteries, tires and used lubricants, and the ownership and operation of real property.
These laws and regulations can impose fines and criminal sanctions for violations as well as require the installation of pollution control equipment or operational changes to decrease the likelihood of accidental hazardous substance releases. Accordingly, we could become subject to material liabilities relating to the investigation and cleanup of contaminated properties, and to claims alleging personal injury or property damage because of exposure to, or release of, hazardous substances. In addition, stricter interpretation of existing laws and regulations, new laws and regulations, the discovery of previously unknown contamination or the imposition of new or increased requirements could require us to incur costs or become the basis of new or increased liabilities that could have a material adverse effect on our business, financial condition, and results of operations.
National automotive repair chains have also been the subject of investigations and reports by consumer protection agencies and the Attorneys General of various states. Publicity in connection with these kinds of investigations could have an adverse effect on our sales and, consequently, our business, financial condition, and results of operations. State and local governments have also enacted numerous consumer protection laws with which we must comply.
The costs of operating our stores may increase if there are changes in laws governing minimum hourly wages, working conditions, overtime, workers' compensation and health insurance rates, unemployment tax rates or other laws and regulations.
We have experienced and expect further increases in payroll expenses because of federal, state, and local mandated increases in the minimum wage, inflation, and demand for workers in the current labor market. Our vendors are also subject to these factors, which may increase the prices we pay for their products. A material increase in these costs that we were unable to offset by increasing our prices or by other means could have a material adverse effect on our business, financial condition, and results of operations.