toroidal pattern totally disappears as we are getting closer to the central star perhaps due to the changes in the properties or geometry of the alignment mechanism. At first glance the magnetized torus, seen at 230 GHz, could be considered as an independent secondary element of the magnetic structure of OH 231.8+4.2 (along with the poloidal structure).\
However, @Sabin2015b noted a coherent variation in the PA of the magnetic vectors observed in the millimeter range, between the northern and southern sections (with respect to the equatorial plane), which would be consistent with a single helical structure (composed of a toroidal and a poloidal sections). This will be discussed below.

The case of the region “C” {#reg3}
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While the structures described in §§\[reg1\] and \[reg2\] show organized magnetic vectors and preferential directions, this is not the case for the region noted “C” in Figs. \[Evectors\] and \[CompB\]. A closer look at this area (Fig. \[ZoomC\]) indicates that a coherent pattern seems to exist within each internal clump, however this local organization does not hold when the clumps are taken altogether. The changes in the polarization pattern could be linked to the shocked environment at the base of the southern lobe. 