(a) Planning cash flow forecast. On or before September 1 of each year, the department's chief financial officer will issue a planning cash flow forecast for each source of funding that covers a period of not less than the 20 years following the date the forecast is issued and is based on the funding assumptions developed under §16.151 of this subchapter (relating to Long-Term Planning Assumptions).     
      (b) Base cash flow forecast. On or before September 1 of each year, the department's chief financial officer will issue a base cash flow forecast for each source of funding to guide the development of the letting schedule that covers a period of not less than two years following the date the forecast is issued.     
      (c) Requirements. Each forecast must identify:      
        (1) all state and federal sources of funding available for transportation projects and projects involving aviation, public transportation, rail, and the state's waterways and coastal waters, including bond proceeds; and       
        (2) any limitations imposed by state or federal law on the use of the identified source.       
      (d) First two years. The first year or two years of each forecast, as appropriate, must be based on the amounts appropriated by the legislature to the department for that period.     
      (e) Updates. The department's chief financial officer will update each forecast more frequently than annually if significant changes in the department's funding occur.     
      (f) Publication. Each forecast and update will be available on the department's website for viewing by the public and the documents will be available for review at each of the district offices and at the department's Financial Management Division offices in Austin.     
      (g) Uses of planning cash flow forecast. The commission will use the planning cash flow forecast to estimate funding levels for each year of the unified transportation program as provided in §16.105 of this chapter (relating to Unified Transportation Program (UTP)), to determine the annual amount of funding in each of the program funding categories described in §16.153 of this subchapter (relating to Funding Categories), and to allocate funding to the districts, metropolitan planning organizations, and other authorized entities in accordance with §16.154 of this subchapter (relating to Transportation Allocation Funding Formulas).     
      (h) Funding definition. In this subchapter, unless the context clearly indicates otherwise, "funds" or "funding" means the estimates of federal, state, and local money reasonably expected to be available for expenditure on transportation projects and projects involving aviation, public transportation, rail, and the state's waterways and coastal waters during the relevant period.     
     Source Note:        The provisions of this §16.152 adopted to be effective January 1, 2011, 35 TexReg 8388; amended to be effective November 15, 2012, 37 TexReg 8981; amended to be effective January 1, 2017, 41 TexReg 10670