I had a quick search, and found this information
"
B1 visas:
In America, immigration on a temporary basis through the B1 class, also known as a "Visitor for Business" visa, allows a candidate to enter the USA for a typical maximum duration of 6 months; however in most cases the total validity period of the B1 period is anywhere from 1 to 10 years during which time the bearer can make multiple trips to the United States.
Whilst applicants are prohibited from working in the USA, the following business related activities are permitted:
- An applicant from a foreign branch of a US company may migrate to the USA to consult with the company.
- An applicant from a foreign-based company may come to the USA to manage sales/purchases and to negotiate contracts.
- Candidates may conduct market research, attend conferences seminars or conventions.
- Applicants may enter the US in order to make an investment or open a US branch of a foreign company. This extends to activities performed prior to starting a business, e.g. opening bank accounts and obtaining office space.
- Applicants who are professional athletes and who will not be earning a salary in the USA may enter on a B1.
As examples of the wide variety of non-immigrant USA visas, the B2 tourist/visitor visa is not intended as a route to gaining lawful permanent residence in the USA through a Permanent Resident Card or US Green Card as it more commonly known.
The B2 visa
In America, visas of this class are also referred to as "visitor for pleasure" visas, although in practice this visa service covers people entering the country for health reasons, visiting relatives, and to participate in short study courses as well as those entering as tourists.
B-2 visas are typically granted for a period of 1 to 10 years, during which time the bearer is permitted to make multiple entries into the United States in order to pursue approved B2 visa activities (tourism, visiting family or friends, health reasons etc.). Each visit to the United States will be limited to a duration not exceeding six months and B2 visa holders are not entitled to employment rights. In some case this length of stay may be extended by an additional six months however in both classes, candidates must be able to demonstrate that their visit to the USA is intended as a temporary one.
When applications are assessed considerable attention is paid to demonstrable evidence that the applicant has no intention of giving up their residence in their home country and that they have the intention and the means to support themselves during their stay and to leave before or upon the expiry of their US visa. An applicant's intention to continue residing in their home country can be supported by evidence of family ties, property ownership, employment or any evidence which suggests that an applicant is irrevocably linked to their own country"
All taken from www.globalvisas.com
Oddly enough, it doesn't have any information about the C1/D
Hope it helps
BoB
After a quick search, all the information I can see just states that the C1/D is a crewmans Visa. Allowing access to the US for up to 29 days.
Last edited by BestonBoard; 23rd May 2008 at 03:59.
Reason: Extra Information