Unless otherwise provided in the trust, if the settlor's spouse is named as beneficiary, the settlor's spouse is still living, and the trust is classified as a support trust, then the trustee shall consider the resources of the settlor's spouse, including the settlor's obligation of support, prior to making a distribution. In all other cases, unless otherwise provided in the trust, the trustee need not consider the beneficiary's resources in determining whether a distribution should be made.
SDCL 55-1-31