In order to earn this level of ultrasound certification, individuals must sit for an ARDMS exam (in some cases a main and specialty exam depending on the area the ultrasound technician/sonographer is specialized in).To be eligible to write the certification exams, individuals must meet certain prerequisites.ccording to the American Registry for Diagnostic Medical Sonographers (ARDMS), âcertification is a voluntary process and documents that an individual has met specific requirements and has the knowledge, skills and abilities to perform within a professionâ (ARDMS.org).
Name, Position in exporting company, company stamp, signature. A commercial invoice is a document used in foreign trade. It is used as a customs declaration provided by the person or corporation that is exporting an item across international borders. commercial invoice must also include a statement certifying that the invoice is true, and a signature. A commercial invoice is used to calculate tariffs, international commercial terms (like the Cost in a CIF) and is commonly used for customs purposes.
For the Japanese company, see Invoice (company). An invoice, bill or tab is a commercial document issued by a seller to a buyer, relating to a sale transaction and indicating the products, quantities, and agreed prices for products or services the seller had provided the buyer. Payment terms are usually stated on the invoice. These may specify that the buyer has a maximum number of days in which to pay and is sometimes offered a discount if paid before the due date. The buyer could have already paid for the products or services listed on the invoice.