LOS ANGELES — A new state law in California allows gay and lesbian couples nearly all the same rights and benefits of married spouses if they choose to sign up with a state domestic partner registry. For thousands of same-sex couples in the state, that means legal recognitions they have long dreamed about having. California Assemblywoman Jackie Goldberg, author of the Domestic Partnership and Responsibilities Act (search), calls the measure historic. It grants same-sex couples everything from insurance benefits to adoption rights, but also adds responsibilities like their partner's debt.