Purpose:Every year, the construction industry generates the largest amount of hazardous wastethat occurs in Sweden. Hazardous waste is waste that can be hazardous to theenvironment and human health. According to statistics from the report Avfall i Sverige2018 – uppkomst och behandling compiled by MiljöEmissonData (Naturvårdsverket,2020b), the arisen amount of hazardous waste has remained stable for a long period. Tocounteract this, a new environmental law came into force the 1st of November, whichmade it mandatory to report all hazardous waste management. The aim of the study isto survey how construction services are affected by the new law change. The study hasbeen carried out in collaboration with Peab Byggservice AB and therefore it onlyreflects their impact of the new legislation. Can they maintain their efficiency inproduction and their economy after the amendment? Method:The study is a qualitative case study. The case is about how different constructionprojects are affected in the management of hazardous waste. The chosen methods torespond the target are observations, interviews and document collection. Interviewswere conducted with staff in different positions at Peab Byggservice AB. Observationswere carried out at Peab Byggservice AB's workplaces in connection with theinterviews. Documents were collected from four different projects. Findings:Based on the case study carried out in the survey, the results show that PeabByggservice AB's economy between customers and recycling companies has beenaffected by the new environmental legislation. Based on the case study, the results alsoshow that the efficiency of production at Peab Byggservice AB has been affected in thewake of the new environmental legislation. The results show that the impact of thebusiness is most likely to arise from the company's smaller projects. Implications:The study shows that many factors play a part in the reporting and management ofwaste. In small projects, a large part of the waste is handled with its own staff and therecycling companies are used for handling and reporting the hazardous waste. For largerprojects, waste is sorted into containers by its own staff and recycling companies handlethe vessels and report hazardous waste. In order to promote efficiency and the economyof all projects, the contractor should plan and work closely with the recyclingcompanies. Furthermore, the efficiency and economy of construction services canbenfit from a smarter solution that include tranport and sort small amounts of waste. Limitations:The study is limited to one construction service business, and it surveys how they areaffected by changes in the environmental legislation. The fact that the study is solelybased on one business makes the results only partly generalisable.