  The H1 and ZEUS collaborations at HERA have searched for signatures of
physics beyond the Standard Model with high Q^2 neutral current deep inelastic
electron-proton and positron-proton scattering events. No significant
deviations from Standard Model predictions were observed. Various eeqq contact
nteraction models have been considered. Limits on the compositeness scale in
general eeqq contact interaction models, mass to the Yukawa coupling ratio for
heavy leptoquarks, the effective Planck mass scale in models with large extra
dimensions and the effective quark charge radius are presented.
