srd
SRD
Prerequisites: Str 13, Power Attack.
Benefit: When you perform a bull rush you do not provoke an attack of opportunity from the defender. You also gain a +4 bonus on the opposed Strength check you make to push back the defender.
Special: A fighter may select Improved Bull Rush as one of his fighter bonus feats.
Open Game Content from the System Reference Document 3.5, used under the Open Game License 1.0a.