This manual is intended to introduce Trials of Improved Practices (TIPs) to organisations, including the U.S. Agency for International Development (USAID) Clean Cities, Blue Ocean (CCBO) program’s grantee organizations and local governments working in the reduce, reuse, recycle (3R) and solid waste management (SWM) sectors. The manual provides an overview of TIPs, its uses and benefits, and step-by-step guidance on how it can be conducted.