The β-γ angular correlation for the decay of 20Na has been measured using a symmetric four detector system. The 20Na activity was produced by the 20Ne(p,n)20Na reaction and transported by a He jet to the detector chamber. Care was exercised to ensure that the β source was well defined. Correlation data were acquired for θβ-γ=90° and 180° as a function of positron energy. The correlation data were analyzed for both linear and quadratic energy dependence. We report as the best estimate for the linear coefficient (- 5.0 +/- 0.8) × 10-3 MeV-1 and for the quadratic coefficient (2.9 +/- 0.8) × 10-4 MeV-2. Incorporating the results with other measurements in the A=20 system, we find an upper limit for the second class current contribution to the correlation which is no more than 20% of the weak magnetism contribution and is consistent with zero. NUCLEAR REACTIONS Radioactivity 20Na; measured β-γ angular correlation. Determined induced weak currents.