From Regulation B
202.13 Information for monitoring purposes.
(a) Information to be requested--(1) A creditor that receives an application for credit primarily for the purchase or refinancing of a dwelling occupied or to be occupied by the applicant as a principal residence, where the extension of credit will be secured by the dwelling, shall request as part of the application the following information regarding the applicant(s):
(i) Ethnicity, using the categories Hispanic or Latino, and not Hispanic or Latino; and race, using the categories American Indian or Alaska Native, Asian, Black or African American, Native Hawaiian or Other Pacific Islander, and White;
(ii) Sex;
(iii) Marital status, using the categories married, unmarried, and separated; and
(iv) Age.
I think you're ok according to Reg B.