This is what's expected :
Police Certificates
Available
Fees: The fee for every certificate of conduct is €13.
Document Name: Führungszeugnis, certificate of conduct, also referred to as a “police check”, “background check” or “criminal records check”
Issuing Authority: Bundesamt für Justiz (Federal Office of Justice)
Special Seal(s) / Color / Format: Printed on special green paper/ German Eagle in the background/ no signature or seal/ DIN A4 format
Issuing Authority Personnel Title: Administrative Clerk at Federal Office of Justice
Registration Criteria: If a person is aged 14 or over, they are able to apply for a certificate of conduct.
Procedure for Obtaining: The application can be made verbally by personal appearance or in simple written form to the registration authority at the following addresses mentioned below. Former residents of Germany, no longer registered in Germany, can apply for an individual record through the German Embassy or Consulate in their country of residence, or directly with the Bundeszentralregister in Bonn. The application form is available at the German Embassy/Consulate, or directly from the Generalbundesanwalt beim Bundesgerichtshof Dienststelle Bundeszentralregister. Personal appearance: Besucherservice, Adenauerallee 99-103, 53113 Bonn. Their office hours are Mondays - Wednesdays: 7:30 - 16:00; Thursdays: 7:30 - 15:30; and Fridays 7:30 - 14:00. Written requests may be sent to: Der Generalbundesanwalt beim Bundesgerichtshof, Dienststelle Bundeszentralregister, Sachgebiet BZR 32 - Internationale Rechtshilfe, 53094 Bonn.
Certified Copies Available: Certified copies are not available
Alternate Documents: Strafregisterbescheinigung or Auszug aus dem Strafregister (extract from criminal record registration)
Exceptions None
Source: https://travel.state.gov/content/travel/en/us-visas/Visa-Reciprocity-and-Civil-Documents-by-Country/Germany.html
Where it says "Exceptions: None" this means you have to give exactly this and nothing else will be accepted. Check if your document fits this description above.