EN14654-2:2021isaEuropeanstandardtitled"Managementandcontrolofoperationalactivitiesindrainageandsewersystemsoutsidebuildings-Rehabilitation."Itprovidesguidelinesandproceduresfortherehabilitationofdrainageandsewersystems,focusingoneffectivemanagement,inspection,assessment,andimplementationofrehabilitationtechniquestoensuresystemfunctionality,durability,andenvironmentalsafety.