Reduction of emissions in shipping is currently driven by new regulations and impact on wealth and climate change, while traffic steadily grows at up to 6% rates yearly in spite of economic recession. Ships on port approach, maneuvering up to mooring and on loading and unloading, also affect the local population. TEFLES addresses both sea and at port emissions scenarios by developing after treatment technologies and combining a selection of innovative and promising technologies with potential high impact, integrating them and assessing their impact with models on sea and port operation scenarios.In addition to after treatment solutions, novel aplicable technologies reducing emissions in operations and reductions in the time of operations at port are also considered. Shore power connection, power generation, propulsion, and advanced use of residual heat applications are included as high potential impact emission reduction solutions.The assessed technology solutions and models are then integrated on the impact models of the sea and port scenarios, and then validated on a Atlantic MoS scenario including head ports. The simulation models will also be applicable to other shipping scenarios.Economic aspects, cost benefit, and regulatory and policy issues are further considered. IMO, EMSA, and national and regional administrations will be consulted, and an end users group will be set up to enlarge the partnership, which already includes ports, specialised industries, and a shipyard. A Short Sea Shipping Association and one of the most qualified MoS operators have adhered through letters of interest.Each scenario model will be completed with a final workshop after validation. Dissemination through Beta testing seminars on use of the models will be provided, as well as a web page.