Electric quadrupole transition strengths for the 2[, T= 1 ~0~, T--1 y-decay branches are summarized for 10<_A_<42 nuclei. In I~ the corresponding branch has been remeasured by use of the 9Be(p, y)l~ resonance reaction at Ep=320 keV; an upper limit of 0.6 % is found. The variation of the E2 strengths within each individual T= 1 isobaric multiplet reveals the particle-or hole-character of the levels involved. The isoscalar 2~-~0[ transition strengths in 10_