Our business is subject to regulation by various federal, state, local and foreign governmental agencies. In the U.S., the Department of Transportation (DOT), as well as local, state and other federal agencies exercise broad powers over our motor carrier operations, safety and the treatment and disposal of waste materials. We are also subject to environmental laws and regulations imposed by the EPA, including requirements related to exhaust emissions, as well as regulations imposed by the Food and Drug Administration (FDA) and the United States Department of Agriculture (USDA). Given the size of our employee base, we are also subject to health and safety laws imposed by OSHA, as well as those imposed by state and local authorities. In addition, we must also comply with domestic and international laws and regulations related to tax. We are further subject to anti-bribery, anti-corruption, and anti-money laundering laws, including the U.S. Foreign Corrupt Practices Act and Office of Foreign Assets Control (OFAC) restrictions.
Compliance with existing laws and regulations has involved, and we expect will continue to involve, significant time commitments and costs, and in recent years, we have seen an increase in proactive regulatory enforcement. For example, the DOT, through the Federal Motor Carrier Safety Administration (FMCSA), periodically conducts compliance reviews and evaluates the safety rating assessed to motor carriers ("satisfactory," "conditional" or "unsatisfactory"). The receipt of a final "conditional" or "unsatisfactory" safety rating due to deficiencies in our safety and compliance program could have a material adverse effect on our customer relationships, as some of our existing customer contracts require a "satisfactory" DOT safety rating. Moreover, if we fail to comply with DOT regulations, including our failure to maintain a "satisfactory" DOT safety rating, the DOT could levy fines and require us to cease all transportation services under our operating authority, which could have a material adverse effect on our business. In addition, compliance and enforcement initiatives implemented by the FMCSA related to driver time, fitness and safety may shrink the industry's pool of qualified professional drivers. With respect to our international operations in Canada and Mexico, we are subject to local laws and regulatory requirements, including tax and anti-bribery laws, which vary significantly from country to country. Our failure to comply with each of these laws may expose us to legal liability, fines or other penalties.
In addition, new laws, rules or regulations may be adopted or interpretative changes to existing regulations could be issued at any time. Any new initiatives could further increase our costs or operating complexity and our ability to offer certain services in the jurisdictions in which we operate. Our failure to comply with any existing or future laws or regulations, whether actual or alleged, could have a material adverse effect on our business and on our ability to access the capital required to operate our business. Among other things, any such failure could expose us to reputational harm, loss of business, fines, penalties or potential litigation liabilities, and the loss of operating authority and restrictions on our operations. For example, compliance with new laws or regulations related to employee and independent contractor classification may cause us to incur additional exposure under federal and state tax and employment laws. Similarly, compliance with new environmental laws or regulations may also impose new restrictions on our business or require us to take certain actions that may increase our costs and adversely affect our business.
We may also fail to ensure that companies we acquire, that may not have historically maintained internal compliance controls, risk mitigation processes, or policies or procedures, comply with regulatory and legal requirements consistent with our standards. Moreover, we are also subject to reputational risk and other detrimental business consequences associated with noncompliance by other parties with whom we engage with, such as employees, customers, agents, suppliers or other persons using our supply chain or assets to commit illegal acts, including the use of company assets for terrorist activities, fraud or a breach of data privacy laws.