Secondary containment requirements are addressed by the Environmental Protection Agency (EPA) through the Resource Conservation and Recovery Act (RCRA) contained in title 40 of the Code of Federal Regulations (CFR) part 264, the 2006 Uniform Fire Code (UFC) in standard 60.3.2.8.3 and in the 2012 International Fire Code (IFC) in 5004.2.
You should check your visa endorsement for the period of your stay in Zambia. Although you are allowed 90 days per calendar year the immigration officer will not normally endorse the full length of time upon entry and you will be required to extend the stay at the nearest immigration office.
Mainland visa usually takes 1-2 days. U.S. citizens may visit Hong Kong for up to 90 days without a visa, but a visa is required for those to work, study, establish or join in any business or to take up residence. no, i'm sure your visa expired long ago...usually a tourist visa lasts 30/60 days and costs around $60. i've visited on a student visa and that lasted 180 days. it just depends on what type of visa you have, and if you have single or multiple entry.