To amend the Civil Rights Act of 1964 to protect breastfeeding by new mothers; to provide for a performance standard for breast pumps; and to provide tax incentives to encourage breastfeeding.

Pregnancy Discrimination Act Amendments of 2005 - Amends the Civil Rights Act of 1964 to include lactation (breastfeeding, including expression of milk) as protected conduct under such Act. Amends the Internal Revenue Code to allow employers a business tax credit for breast pumps and other equipment to assist employed mothers to breastfeed or express milk for their children and for...