Subject: enron net works t & e policy to : all enw employees from : greg piper and mark pickering please print and become familiar with the updated enw t & e policy , which is attached . changes to the policy include business - first travel , with supervisor approval , for international flights over 4 hours in duration ( excluding canada and mexico ) . supervisors will be responsible for making the decisions and bearing the expense for business - first travel . if you have any questions about the policy or an expense not covered under the policy , please contact tina spiller or lisa costello .