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.
The Peruvian business visa is a multiple entry visa and entitles its holder to enter Peru within a time period of 12 months from the date of issue. The maximum stay on a business is 183 day per year, but the consulates abroad reserve the right to grant visas for shorter stays. Peruvian business visa can't be extended.