For beneficiaries in institutions whose Medicaid eligibility is based on a special income standard established under § 435.236, FFP is available in expenditures for services provided to those individuals only if their income before deductions, as determined by SSI budget methodology, does not exceed 300 percent of the SSI benefit amount payable under section 1611(b)(1) of the Act to an individual in his own home who has no income or resources.