The long-standing discrrpancy between pp-bremssttahlung data and calcu
lations bared on the nlativistic impulse approximation current is subs
tantially reduced by rha inclusion of the PV gamma and intermediate-st
ate Delta-resonance isoscalar meson-exchange cumats. The success of th
e standard procedure adopted hen shows that pp-bremsstrahlung provides
a powerful tool for the further study of T = 1 isoscalar exchange cur
rents, The need for addition high-precision data is stressed.