EMB ERJ 145 ER/LR
Situational Awareness; Confusion
Deviation - Altitude Crossing Restriction Not Met; Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Flight Crew Returned To Clearance
Procedure; Airspace Structure; Human Factors
We misread RUUDY FOUR departure procedure to indicate cross WENTZ 'at or above 1;500.' In reality; the instructions are to cross WENTZ 'at' 1;500. We stopped the climb promptly and exceeded 1;500 FT by only 150 FT. Double and triple check the appropriate charted notations if necessary; especially with new procedures; as is the case with the TEB RUUDY FOUR.
ERJ First Officer reports overshooting the WENTZ crossing restriction slightly on the RUUDY FOUR departure from TEB due to misreading the procedure.