Socio-Economic Impact Assessment System (SEIAS) Initial Impact Assessment Template (PHASE 1) 09 December 2016 2018-07-31 Effective Date: 2018-07-31 Documents Socio-Economic Impact Assessment System (SEIAS) Initial Impact Assessment Template (PHASE 1) 09 December 2016 × What's wrong with this page? How we can improve this page? If you'd like us to get back to you, please enter your email address.