There is a automatic (default) rollover rule for qualified retirement plans. The rule applies to mandatory distributions of more than $1,000 from a qualified retirement plan.
Under the requirements, mandatory distributions from a retirement plan, including governmental and church plans, must be paid in a direct rollover to an individual retirement plan unless the distributee elects to have the amount rolled over to another retirement plan or to receive the distribution directly. A mandatory distribution is a distribution that is made without the participant's consent and is made to a participant before the participant attains the later of age 62 or normal retirement age. However, a distribution to a surviving spouse or alternate payee does not count as a mandatory distribution.
The plan administrator must notify a distributee in writing when a distribution will be paid in a direct rollover to an IRA. In the meantime, contact your plan administrator if you have any questions about the mechanics of the automatic rollover provision.