Guide to authenticate Maryland birth certificate.
Official Documents Issued by the State or a County in Maryland: Documents that are issued by a Maryland state or county official and have a seal and authorized signature can be taken directly to the Maryland Office of the Secretary of State in Annapolis for certification – without first being notarized. Examples of these documents are: birth or death certificates, motor ...
认证以后,到中国大使馆做领事认证。
洛杉矶的领事馆认证手续见内。
http://losangeles.china-consulate.gov.cn/eng/visa/chinaauthen/201703/t20170325_5421843.htm