Charles Ellicott Commentary Leviticus 15:30

"And the priest shall offer the one for a sin-offering, and the other for a burnt-offering; and the priest shall make atonement for her before Jehovah for the issue of her uncleanness." — Leviticus 15:30 (ASV)

And the priest shall offer.— Exactly in the same manner as described in Leviticus 15:15.