Senate Bill 2027, also known as House Bill 2009, amends Tennessee Code Annotated to allow counties or municipalities to request a highway traffic noise study for residential properties adjacent to state highways. This request can be made if a tree zone has been removed for reasons unrelated to highway construction and if there is no existing shielding or noise barrier in place. The bill defines key terms such as "noise barrier," "shielding," and "tree zone" to clarify the conditions under which a noise study may be requested.

Additionally, the bill includes a provision that requires the Department of Transportation to invoice the requesting county or municipality for the actual costs of conducting the noise study, which must be paid before the study can commence. This ensures that local governments are financially responsible for the studies they request, thereby streamlining the process and clarifying the financial obligations involved. The act is set to take effect upon becoming law.