Amends the National Disability Insurance Scheme Act 2013 to: expand the NDIS Quality and Safeguards Commission’s powers to detect, prevent and respond to breaches of obligations under the Act; provide participants wishing to withdraw from the National Disability Insurance Scheme with additional safeguards and communication options; enable the National Disability Insurance Agency to move to an entirely electronic claiming system for providers; and ensure that plan variations can include an increase or decrease of the total funding amounts.