Keith Horner’s paper presents an analysis of the proposed registered disability savings plan − an idea put forward by the Planned Lifetime Advocacy Network (PLAN).  The registered disability savings plan (RDSP) is a way to help families improve the quality of life of their relative with a disability and to ensure the financial security of their relative over the longer term.  The RDSP would operate as a tax-assisted savings plan in much the same way as a Registered Retirement Savings Plan (RRSP).  The paper explores possible design options for an RDSP and assesses the potential uptake and cost of each option.