The bill specifies that it doesn't create a new class of marriage. But it will allow unrelated adults, regardless of gender, to share "the same legal obligations, responsibilities, protections, and benefits as are afforded or recognized by the law of Illinois to spouses."

Among the practical applications will be the same health insurance rights for partners as those now extended to spouses; the right to make medical decisions for an incapacitated partner; and estate and property rights after the death of a partner or dissolution of a relationship.