Environmental laws and regulations are constantly changing and are generally becoming more restrictive. Laws, regulations and related judicial decisions and administrative interpretations affecting our business are subject to change, and new laws and regulations are frequently enacted. These changes may adversely affect our ability to harvest and sell timber, remediate contaminated properties and/or entitle real estate. These laws and regulations may relate to, among other things, the protection of timberlands and endangered species, recreation and aesthetics, protection and restoration of natural resources, surface water quality, timber harvesting practices, and remedial standards for contaminated property and groundwater. Over time, the complexity and stringency of these laws and regulations have increased and the enforcement of these laws and regulations has intensified. For example, the U.S. Environmental Protection Agency ("EPA") has pursued a number of initiatives that, if implemented, could impose additional operational and pollution control obligations on industrial facilities like those of Rayonier's customers, especially in the area of air emissions and wastewater and stormwater control. Similarly, recent legislation in Oregon will ultimately result in the addition of significant buffers and riparian management zones adjacent to streams, the effect of which will be to reduce the areas within which we may harvest. In addition, as a result of certain judicial rulings and state and federal initiatives, including some that would require timberland operators to obtain permits to conduct certain ordinary course forestry activities, silvicultural practices on our timberlands could be impacted in the future. Environmental laws and regulations will likely continue to become more restrictive and over time could adversely affect our business, financial condition and results of operations.
If regulatory and environmental permits are delayed, restricted or rejected, a variety of our operations could be adversely affected. We are required to seek permission from government agencies in the states and countries in which we operate to perform certain activities related to our properties. Any of these agencies could delay review of, or reject, any of our filings. In our Southern Timber, Pacific Northwest Timber and New Zealand Timber segments, any delay associated with a filing could result in a delay or restriction in replanting, thinning, insect control, fire control or harvesting, any of which could have an adverse effect on our operating results. For example, in Washington State, we are required to file a Forest Practice Application for each unit of timberland to be harvested. These applications may be denied, conditioned or restricted by the regulatory agency. Actions by the regulatory agencies could delay or restrict timber harvest activities pursuant to these permits. Delays or harvest restrictions on a significant number of applications could have an adverse effect on our operating results.
Environmental groups and interested individuals may seek to delay or prevent a variety of operations. We expect that environmental groups and interested individuals will intervene with increasing frequency in the regulatory processes in the states and countries where we own, lease or manage timberlands. For example, in Washington State, environmental groups and interested individuals may appeal individual forest practice applications or file petitions with the Forest Practices Board to challenge the regulations under which forest practices are approved. These and other challenges could materially delay or prevent operations on our properties. For example, interveners at times may bring legal action in Florida in opposition to entitlement and change of use of timberlands to commercial, industrial or residential use. Delays or restrictions due to the intervention of environmental groups or interested individuals could adversely affect our operating results. In addition to intervention in regulatory proceedings, interested groups and individuals may file or threaten to file lawsuits that seek to prevent us from obtaining permits, implementing capital improvements or pursuing operating plans. Any threatened or actual lawsuit could delay harvesting on our timberlands, affect how we operate or limit our ability to modify or invest in our real estate. Among the remedies that could be enforced in a lawsuit is a judgment preventing or restricting harvesting on a portion of our timberlands.
Third-party operators may create environmental liabilities. We lease and/or grant easements across some of our properties to third-party operators for the purpose of operating communications towers, generating renewable energy (wind and solar), operating pipelines for the transport of gases and liquids, conducting carbon capture and storage operations and exploring, extracting, developing and producing oil, gas, rock and other minerals. These activities are subject to federal, state and local laws and regulations. These operations may also create risk of environmental liabilities for an unlawful discharge of oil, gas, chemicals or other materials into the air, soil or water. Generally, these third-party operators indemnify us against any such liability, and we require that they maintain liability insurance to the extent practical to do so. However, if for any reason our third-party operators are not able to honor their obligations to us, or if insurance is not in effect, then it is possible that we could be responsible for costs associated with environmental liabilities caused by such third-party operators.
The impact of existing regulatory restrictions on future harvesting activities may be significant. U.S. federal, state and local laws and regulations, as well as those of other countries, which are intended to protect threatened and endangered species, as well as waterways and wetlands, limit and may prevent timber harvesting, road building, our participation in markets for carbon offsets and carbon storage and other activities on our timberlands. Restrictions relating to threatened and endangered species apply to activities that would adversely impact a protected species or significantly degrade its habitat. The size of the restricted area varies depending on the protected species, the time of year and other factors, but can range from less than one acre to several thousand acres. A number of species that naturally live on or near our timberlands, including, among others, the northern spotted owl, marbled murrelet, several species of salmon and trout in the Pacific Northwest, and the red cockaded woodpecker, red hills salamander, Louisiana pine snake and eastern indigo snake in the Southeast, are protected under the Federal Endangered Species Act (the "ESA") or similar U.S. federal and state laws. A significant number of other species are currently under review for possible protection under the ESA. As we gain additional information regarding the presence of threatened or endangered species on our timberlands, or if other regulations, such as those that require buffers to protect water bodies, become more restrictive, the amount of our timberlands subject to harvest restrictions could increase.
We formerly owned or operated or may own or acquire timberlands or properties that may require environmental remediation or otherwise be subject to environmental and other liabilities. We owned or operated manufacturing facilities and discontinued operations that we do not currently own, and we may currently own or may acquire timberlands and other properties in the future that are subject to environmental liabilities, such as remediation of soil, sediment and groundwater contamination and other existing or potential liabilities. In connection with the spin-off of our Performance Fibers business in 2014, and pursuant to the related Separation and Distribution Agreement between us and Rayonier Advanced Materials, Rayonier Advanced Materials has assumed any environmental liability of ours in connection with the manufacturing facilities and discontinued operations related to the Performance Fibers business and has agreed to indemnify and hold us harmless in connection with such environmental liabilities. However, in the event we seek indemnification from Rayonier Advanced Materials, we cannot provide any assurance that a court will enforce our indemnification right if challenged by Rayonier Advanced Materials or that Rayonier Advanced Materials will be able to fund any amounts for indemnification owed to us. In addition, the cost of investigation and remediation of contaminated timberlands and properties that we currently own or acquire in the future could increase operating costs and adversely affect financial results. We could also incur substantial costs, such as civil or criminal fines, sanctions and enforcement actions (including orders limiting our operations or requiring corrective measures, installation of pollution control equipment or other remedial actions), clean-up and closure costs, and third-party claims for property damage and personal injury as a result of violations of, or liabilities under, environmental laws and regulations related to such timberlands or properties.