在温哥华办理美国签证攻略

非移民签证常见类型

• CNMI-only(仅限于美国北玛利安纳群岛) transitional worker(CW-1).
• business visitor商务访问(B-1)
• Exchange visitor交换访问(J)
• Intra-company transferee公司内部穿梭(L)
• Tourism, vacation, pleasure visitor旅游(B-2)

照片场景要求

• Sized such that the head is between 1 inch and 1 3/8 inches (22 mm and 35 mm) or 50% and 69% of the image's total height from the bottom of the chin to the top of the head.
• Taken in front of a plain white or off-white background

照片拍摄和处理要求

Dimensions	The image dimensions must be in a square aspect ratio (the height must be equal to the width). Minimum acceptable dimensions are 600 x 600 pixels. Maximum acceptable dimensions are 1200 x 1200 pixels.
Color	The image must be in color (24 bits per pixel) in sRGB color space which is the common output for most digital cameras.
File Format	The image must be in JPEG file format
File Size	The image must be less than or equal to 240 kB (kilobytes).
Compression	The image may need to be compressed in order for it to be under the maximum file size. The compression ratio should be less than or equal to 20:1.

详细流程

1. 浏览 领事电子申请中心 以申请非移民签证。
2. ...