As per the site:
3/ Outstanding Technical Contribution: Members of the general public may nominate candidates who, in their opinion, have done something "exceptional" with an Ubuntu-based device, Unity8, Mir, etc. on a technical level. Each jury member has one vote, and the nominated candidate with the most jury votes wins.
4/ Outstanding Non-Technical Contribution: Members of the general public may nominate candidates who, in their opinion, have done something exceptional, but non-technical, to bring the Ubuntu platform forward. So, for example, you can nominate a friend who has reported and commented on all those phone-related bugs on Launchpad. Or nominate a member of your local community who did translations for Core Apps. Or nominate someone who has contributed documentation, written awesome blog articles, etc. The rest of the rules are identical to the "Outstanding Technical Contribution" category.
My question is: Should it be category 3 or 4 or both???