The current regulatory emphasis on biosolids is addressing challenges of PFAS, however, microplastics (MP) have emerged as a contaminant of concern. There are currently no regulatory limits for MP concentrations in biosolids in the US and Canada, there are emerging regulations on source reduction and research, and some jurisdictions are developing strategies and monitoring guidelines. The EU is developing a comprehensive strategy to reduce microplastic pollution with specific limits in biosolids for agricultural application under consideration. In the UK, revisions to the Sewage Sludge Directive will address microplastics and their potential impact when biosolids are used as fertilizer. These regulatory activities are in direct response to new research that shows widespread occurrence of MPs in biosolids and unsurprisingly, the agricultural soils that are one of the largest natural reservoirs of microplastics (Liu et al., 2021). MPs from land applied biosolids do not always remain in the soil but can also be released into the surrounding environment (Borthakur et al., 2022; Koutnik et al., 2021). Like PFAS, while early regulations were initially challenged with a lack of standardized methods for sampling, extraction, and analyses, there are emerging approaches to quantifying microplastics in biosolids. These new techniques are being used to document the occurrence of MPs in biosolids (Prus et al., 2024) as well as elucidating the potential environmental impacts that MPs have. For example, more recent work at the University of Memphis demonstrated impacts of MPs on soil hydrology, specifically in retaining and releasing moisture (Bakhshaee et al., 2025). MPs from land applied biosolids can also negatively impact soil organisms (earthworms, microbes), and act as carriers for other toxins, potentially entering the food chain through contaminated plants, affecting crop yields, nutrient cycles, and posing risks to human health, with accumulation projected to worsen over time. Soil pollution from MPs is considered largely irreversible, emphasizing the need for mitigation. In addition to these challenges, current biosolid stabilization methods are not specifically designed to address MPs, and recent research shows that MP particles become more fragmented and mobile through stabilization, particularly through anaerobic digestion and lime stabilization (Hamza et al., 2026). This enhances ecological and mobility risks of MP particles once introduced into the environment, particularly in agricultural soils. Thus, this presentation will provide an overview of the global regulatory status for microplastics as related to biosolids, which provides future insights into what may be important for regulatory development in the U.S. It also provides an overview of how current biosolids land application practices can impact soil health and potentially pose broader environmental and public health risks. Finally, proposed mitigation strategies for addressing MPs in biosolids are described to inform future planning at a time when utilities are already trying to address the PFAS challenge.