The 3-month requirement to apply for naturalization in a US district/state is computed
from the date on which the applicant first established that residence [...] including any part of the applicant's absence.
What criteria does the USCIS use to decide when the applicant has established residence in a US district/state? To phrase it slightly differently: what event(s) does the USCIS use to decide the date on which the applicant first established that residence?
E.g., is the issuance date of a driver's license in that US district/state considered by the USCIS as a proof that the applicant has established in that US district/state at that time (=the issuance date of the driver's license)? The date when the lease/mortgage? The date when the Internet/electricity/gas/water start?