Sustainable track greening requires the consideration and integration of both track and vegetation technical knowledge and experience. The choice of system, site conditions, and maintenance effort are closely related and should be viewed as a whole. The Track Greening Manual provides a detailed overview and explanations of commonly used superstructure forms and vegetation systems for greened tram tracks in Germany and offers recommendations for the planning, execution, and maintenance of track greening with practical decision-making aids. The technical fundamentals are at the forefront. Important legal aspects are referenced. This manual brings together, for the first time, the key requirements, knowledge, and experiences related to track greening from the partners of the Green Track Network - professionals from transportation companies, research institutions, and internationally operating companies. The manual serves as a reference and overview work for experienced practitioners in the track and vegetation field, as well as for decision-makers, planners, and beginners.