The proposed bill H. 4557 aims to establish a comprehensive framework for odor management in South Carolina by adding Chapter 63 to Title 48 of the South Carolina Code of Laws. It defines key terms related to odor complaints and mandates the Bureau of Air Quality to investigate complaints when five or more verifiable complaints are received within a 48-hour period. The bill requires facility owners to develop and submit an odor management plan if their facility is found to emit objectionable odors, which are defined as odors that could harm public health or interfere with the enjoyment of property. The Bureau is tasked with providing technical assistance to facility owners in creating these plans and has the authority to impose penalties for non-compliance.

Additionally, the bill outlines specific exemptions for certain operations, including on-farm agricultural activities, motor vehicles, and single-family dwellings not used for commercial purposes. It also empowers the Bureau of Air Quality to create regulations to implement the chapter, including establishing odor standards and procedures for addressing complaints. The bill is designed to enhance air quality management and ensure that facilities take responsibility for mitigating odor emissions that affect surrounding communities.