Despite existing laws, poor waste management persists as a significant problem. This study examined the influence of attitudes toward waste management, social norms, and perceived behavioral control on the adoption of waste management practices. Using a descriptive-correlational design involving 300 respondents selected through simple random sampling, the results showed that the predictor variables were significant factors, accounting for 19.8% of the influence on the criterion variable. Further research may be conducted to investigate the remaining 80.2% variance in the criterion variable. To contribute to the realization of Sustainable Development Goals (SDGs) 11 and 12, a public awareness campaign on effective waste management is also strongly recommended.