From a new update to Social Security's main operating manual (POMS):
Transgender individuals contact us for all of the same reasons other people do. ... During and after any interaction with a transgender individual, be mindful to:
Protect the confidentiality of each individual; Always treat the individual with dignity and respect; Ask only questions that are necessary to complete the transaction; When speaking to or calling a person, use the name and pronouns appropriate to the individual’s self-identified gender, even if the person has not changed his or her name or updated his or her records; and Be aware that the individual’s gender transition is a personal matter. Questions or comments regarding a person’s medical treatment and appearance are inappropriate.