I did find the Q and A I was looking for at
http://www.abanet.org/jceb/2002/qa02irs.pdf6. §401(a)(4) – New Comparability Regulations
Do the new comparability regulations apply for purposes of the average benefits percentage test?
Assume an employer sponsors both a defined benefit and defined contribution plan, each of
which is tested for coverage and nondiscrimination separately, but uses the average benefits test
for demonstrating compliance with the coverage requirements for one or both plans. Do the new
comparability regulations affect the employer’s ability to do the average benefits percentage test
on a benefits basis?
Proposed response: The new comparability regulations do apply for purposes of the average
benefits percentage test, but won’t restrict the employer’s ability to do the test on a benefits basis
in the situation described. Treas. Reg. 1.410(b)-5(d)(5) indicates that the employee benefit
percentage for the average benefits percentage test is “the rate that would be determined for that
employee for purposes of applying the general test for nondiscrimination in Treas. Reg.
1.401(a)(4)-2, 1.401(a)(4)-3, 1.401(a)(4)-8 or 1.401(a)(4)-9, if all the plans in the testing group
were aggregated for purposes of §410(b).” Since the new comparability regulation provisions in
Treas. Reg. 1.401(a)(4)-8 and 1.401(a)(4)-9 affect the rate that would be determined for the
general nondiscrimination test, those provisions apply for purposes of the average benefits
percentage test.
However, in the case of an employer sponsoring a defined benefit plan and a defined contribution
plan that are tested separately under the coverage and nondiscrimination regulations, except that
benefits under both plans are considered for purposes of the average benefits percentage test, the
defined contribution plan will satisfy Treas. Reg. 1.401(a)(4)-9(b)(2)(v)©, the “broadly
available separate plan” threshold. The average benefits percentage test in this situation can be
determined on a benefits basis.
IRS response: The IRS agrees with the proposed response.