If you are close to ovulation, EC may not be able to prevent pregnancy if you wait 5 days. Therefore, the best thing to do is take EC as soon as you can get it. A thorough and up-to-date academic review of the medical and social science literature on emergency contraception is available here .
Employer Identification Number - EIN. A unique identification number that is assigned to a business entity so that they can easily be identified by the Internal Revenue Service. The Employer Identification Number is commonly used by employers for the purpose of reporting taxes.
FEMA Student Identification (SID) number is a unique number generated and assigned to anyone who needs or is required to take training provided by a FEMA organization. Your FEMA SID uniquely identifies you throughout the FEMA organization and all of its agencies. The goal is for your FEMA SID to serve as your personal identification number instead of your Social Security Number (SSN) in support of FEMAâs effort to decrease/cease the use of SSN for identifying and tracking individuals.