broader market for telecommunication services, natural disasters and health emergencies, including earthquakes, fires, power outages, typhoons, floods, pandemics or epidemics such as the coronavirus and manmade events such as civil unrest, labor disruption, international trade disputes, international conflicts, terrorism, wars and critical infrastructure attacks and the conditions in the domestic and global economies, generally. Any of these events, among others, could materially and adversely affect our financial condition and operating results. For example, the coronavirus may impact the global economy or negatively affect various aspects of our business, including our workforce and demand for our services, which could impact our ability to deliver services to our customers and make it more difficult to meet our expectations and obligations.
Although our performance is affected by the general condition of the economy, not all of our services are affected equally. Voice revenue is generally linked to relatively consistent variables such as population changes, housing starts and general economic activity levels in the areas served. Data and cable television revenue is generally related to more variable factors, such as changing levels of discretionary spending on entertainment and the adoption of e-commerce and other online activities by our current or prospective customers. It is not possible for management to accurately predict all of these factors and the impact of such factors on our performance.
Changes in the competitive, technological and regulatory environments may also impact our ability to increase revenue and/or earnings from the provision of local wireline services. We may therefore have to place increased emphasis on developing and realizing revenue through the provision of new and enhanced services with higher growth potential. In such a case, there is a risk that these revenue sources, as well as our cost savings efforts through further efficiency gains, will not grow or develop at a fast enough pace to offset declines in local residential services. It is also possible that, as we invest in new technologies and services, demand for those new services may not develop. There can be no assurance that we will be able to successfully expand our service offerings through the development of new services, and our efforts to do so may have a material adverse effect on our financial performance.
Failure to Receive Approved Levels of FCC Support Funding Would Adversely Affect Our Business, Revenue and Cash Flow.
Beginning January 1, 2017, A-CAM replaced USF HCL for two of our three RLECS that had previously received USF HCL support payments, and the third RLEC continued to receive USF HCL and CAF BLS support payments through December 2018. On January 1, 2019 it qualified for, and began receiving, A-CAM II funding. The A-CAM and A-CAM II support requires us to make additional capital investments to build out our network to support the delivery of higher broadband speeds. If our participating RLECs do not receive the approved level of A-CAM or A-CAM II support from the FCC for any reason, our business, revenue and cash flow would be negatively affected.
The outcome of any future FCC proceedings and other regulatory or legislative changes could affect the amount of support that we receive, and could have an adverse effect on our business, revenue and cash flow. If a wireless or other telecommunication carrier receives ETC status in our service areas or even outside of our service areas, the amount of support we receive from the USF HCL could decline under current rules, and under some proposed USF HCL rule changes, could be significantly reduced.
USAC serves as the administrative agent to collect data and distribute funds for USF and in 2006, it began conducting High Cost Beneficiary audits, designed to ensure compliance with FCC rules and program requirements and to assist in program compliance. USAC randomly selects RLECs to be audited each year and several of our RLECs have been selected for one of these audits each year. In December 2016, four of our RLECs were selected for a payment quality assurance audit, which has since been completed with no material findings. USAC has issued a no further action determination letter for three of these audits and the fourth audit revealed an overpayment due to us, which we refunded to USAC in July 2017. If USAC determines in any future audit that any of our data submissions were incorrect, we could be required to return funds to USAC for the period under review, which would negatively affect our business revenue and cash flow.
If we fail to maintain proper and effective internal control over financial reporting, our ability to produce accurate and timely financial statements could be impaired, which could harm our operating results, investors’ views of us and, as a result, the value of our common stock.
Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, our management is required to report upon the effectiveness of our internal control over financial reporting. However, for so long as we remain a