The department may direct the department of employee trust funds, the retirement system of any 1st class city, any retirement system established under chapter 201, laws of 1937, or the administrator of any other pension plan to withhold the amount specified in the statewide support lien docket under s. 49.854 (2) (b) from any lump sum payment from a pension plan that may be paid a delinquent support obligor, except that the department may not direct that an amount be withheld under this subsection unless it has met the notice requirements under sub. (2) and unless the amount specified has either not been appealed or is no longer under appeal under s. 49.854.