A series of state-averaged complete active space self-consistent field (SA-CASSCF) computations were carried out in search of low-energy self-annihilation pathways for two NCl molecules in their first excited state (a(1)Delta). Numerous scans of the lowest 18 electronic surfaces that correlate with the interaction of two NCl molecules in the (XE-)-E-3, a(1)Delta, and b(1)Sigma(+) states are reported. Eight long-range, low-energy pathways were located (four in C-2v and eight in C-2h symmetry) that connect NCl(a(1)Delta) + NCl(a(1)Delta) to NCl(X(3)Sigma(-)) + NCl(b(1)Sigma(+)) and NCl(X(3)Sigma(-)) + NCl(a(1)Delta). It was possible to rigorously characterize the minima on four of these seams of crossings (MSXs). The MSXs between the a + a manifold and the X + b manifold are only 1.8-4.5 kcal mol(-1) above the a + a asymptote and therefore energetically accessible. Additional scans suggest these MSXs are planar but, to some extent, prefer to distort from C-2v cis and C-2h trans structures to C-s orientations, which would lower the MSX energies slightly.