In this paper we present the proposed scheme for reducing the nonlinear chromaticity of the collider in the collision mode. Briefly, the optics of the collider lattice with special emphasis on the interaction regions which are the main sources of chromaticity are discussed. Then, a theoretical calculation of the second‐order chromaticity in a storage ring is discussed. Next we focus on the second‐order tune shift due to the triplets, the domain sources of chromaticity in the interaction regions. The fifth topic is the theory behind our proposed scheme for correcting higher‐order chromaticity. The last concerns of this paper are evaluation of the chromatic performance of the proposed scheme and the effect of the chromaticity‐correcting sextupoles on the dynamics aperture. (AIP)