Be original and don't submit models similar to existing models.
A model created by a different author requires proof of the author's documented and verifiable permission.
If parts from other custom models are in use, permission must have been granted from the author along with credit given in the description of the submission.
No unedited models contained within the war3.mpq, war3patch.mpq, or war3x.mpq may be submitted.
All building, destructible, item, and unit models must include a game camera or portrait model; attachment and doodad models need not.
Building, destructible, and unit models that require animations should be properly animated.
If the model requires custom texture files all necessary textures must be included.
Resource Moderators shall decide on a case-by-case basis which models are acceptable.
If a model is rejected, valid reason(s) must be stated.
The mesh must be clean, with no excess of unnecessary edges and no wasteful geosets or polies.
The UV map must be decent and continuous, with as few seams as possible and without nasty stretching of the texture.
Building, destructible, and unit models that require animations should be properly animated. If the model has custom animations, they must be good and smooth. Animations cannot be too slow or too fast and should be as realistic as possible.
The model must have proper attachment points.
If it's a geomerge, make sure the parts are blended properly and so they don't look like something wickedly unnatural (i.e. exaggeratedly huge heads, very thin necks/waists, etc); objects that should be attached to body parts must not float around or attached unnaturally (i.e. a sword floating near the hand or attached to the lower arm instead of being in the fist); also make sure the UV mapping is correct and that it has no nasty stretching. If so, redo it.
No models directly exported from games other than Warcraft III will be accepted.
Small exports, like a weapon or a shield for a soldier model are allowed to some extent (estimated by the appropriate resource moderator).
Exports from Blizzard games are permitted so long as the model is properly adapted to Warcraft 3. The submitter of the model must make it very clear which parts of the model they made and did not, preferably in the first paragraph in big text.
Model edits are allowed as long as the model is changed significantly, with appropriate acknowledgment by a resource moderator.
If the model has any custom textures, they must adhere to the texture/skin submission rules.
The submission must include an in-game screenshot.