D6.4 is the first deliverable for task T6.4 “Standardization” inside WP6 “Industrialexploitation and pilot replication and commercialization”.This deliverable includes as main contribution the identification and analysis of thestandardization technical committees (TC) at European and International standardizationlevel related with the PASSENGER project as well as the published standards andstandards under development that can be relevant and useful for all the project activities ineach PASSENGER/WP. Using standards as a knowledge source in the earliest possiblestages of research and innovation avoids duplication of work and provides the basis forfuture marketable products.The Spanish Association for Standardisation (UNE), as a European Standardisation Body,is partner in the PASSENGER project to provide support regarding all the standardizationtasks included in the project. In order to fulfil this commitment, this deliverable has beenprepared to guide the partners about the published standards and standards underdevelopment that can be applicable and are related to the PASSENGER/WP tasks.This deliverable will also serve as source to identify, in the near future, the strategy forcollaboration and communication with the relevant technical committees and thecontribution to standardization, and also to recognize the standardisation gaps that can becovered by the results of the project. These two aspects are considered in the finalconclusions.