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We consider the possibility of violations of the selection rule $\DeltaS=\Delta Q$ at an appreciable level in {\it exclusive} semi-leptonic decays ofKaons. At $\Phi$-Factories, intense Kaon beams will be available and will probeamong others, the semi-leptonic decays $K_{l4}$ and $K_{l3\gamma}$ in additionto $K_{l3}$ and could provide novel testing grounds for the $\Delta S=\Delta Q$rule. In particular, the branching ratio of $K_{l3\gamma}$ is non-negligibleand could be used to probe new phenomena associated with the violation of thisselection rule. Furthermore, we modify certain di-lepton event rate ratios andasymmetries and time asymmetries that have been constructed by Dass and Sarmafor di-lepton events from Beon decays to test the $\Delta B=\Delta Q$ at the$\Upsilon (4S)$, to the Kaon system at the $\phi(1020)$. We find that the largewidth of the $K_S$ relative to that of $K_L$ plays an important role inenhancing some of the time asymmetries.Comment: 10 pages, Plain Latex, To be run twice

Testing the ΔS=ΔQrule with exclusive semileptonic kaon decays