Dutch to English Bus/Financial General / Conversation / Greetings / Letters Abbreviation

This is at the end of a letter from the Begium tax authorities regarding elimination of double taxation between two countries.

[body of letter]

John Smith
E.a. Inspecteur

E.a. is et al, but I cannot phantom how that would fit into a job title. Any ideas?

TIA

P.s.: I have checked the glossaries and none of the entries apply to this instance AFIK