Hi, 
 
	I want to ask if I have lost my naturalisation certificate and I applied for my children's first time US passport as they are living with me in the US and are automatically citizens upon entering the US. However, for citizen proof, I used a copy of my US passport without my naturalisation certificate as it is lost.  Has anyone ever done this? Will it be approved as the US passport proves my citizenship ? 
 
	 
 
	Also, in case of denial, do they send back the green cards right away? 
 
	Lastly,  does anyone know how long expedited passport + 1-2 day mailing service actually takes ? It says 2-3 weeks, but i am worried it will take longer as some sites say 3-5 weeks? Thanks alot for any help 🙏