Norma relacionada
South Africa
Practice Relating to Rule 75. Riot Control Agents
South Africa’s LOAC Teaching Manual (2008) states:
3. Means and Methods of Warfare
Several specific weapons are governed by specific treaties. These treaties establish two categories of weapons, to wit[:]
- Weapons of which the use is totally prohibited; and
- Weapons of which the use is permitted under certain conditions.
Weapons of which the Use is Totally Prohibited
- Chemical and bacteriological warfare, …
Weapons of which the use is Permitted under Certain Conditions:
- Tear Gas. Tear gas may only be used during internal operations as a crowd management measure. 
South Africa, Advanced Law of Armed Conflict Teaching Manual, School of Military Justice, 1 April 2008, as amended to 25 October 2013, Learning Unit 3, pp. 174–175, 176 and 179.
[emphasis in original]
South Africa’s Non-Proliferation of Weapons of Mass Destruction Act (1993) states:
(1) The Minister [of Trade and Industry] may, on the recommendation of the [South African] Council [for Non-Proliferation of Weapons of Mass Destruction], whenever he deems it necessary or expedient in the public interest, by notice in the Gazette declare goods which may contribute to the design, development, production, deployment, maintenance or use of weapons of mass destruction, to be controlled goods.
(2) The Minister may in such notice–
(a) prohibit the import, export, re-export or transit of such goods;
(b) limit or control the import, export, re-export or transit of such goods, and determine that the import, export, re-export or transit of such goods may only take place under a permit issued by the Council;
(c) make the import, export, re-export or transit of such goods subject to end-use requirements;
(d) require a declaration to the Council in accordance with the provisions of an international convention, treaty or agreement … with regard to the manufacture, procurement in any manner, use, operation, stockpiling, maintenance, transport, import, export, transit or re-export of such goods;
(e) prohibit the manufacture; procurement in any manner, use, operation, stockpiling, maintenance, transport or disposal by any means of such goods;
(f) make the manufacture, procurement in any manner, use, operation, stockpiling, maintenance, transport or disposal by any means of such goods, subject to a permit issued by the Council. 
South Africa, Non-Proliferation of Weapons of Mass Destruction Act, 1993, Section 13(1)–(2).
South Africa’s Certain Chemical Goods Notice (2010) states:
1. I, … Minister of Trade and Industry, under section 13(1) of the Non-Proliferation of Weapons of Mass Destruction Act, 1993 (Act No. 87 of 1993), and on the recommendation of the South African Council for the Non-Proliferation of Weapons of Mass Destruction …
2. I hereby–
(a) in terms of section 13(2)(e) of the Act and pursuant to South Africa’s obligations under the [1993] Chemical Weapons Convention, further prohibit–
(v) the use of riot control agents as a method of warfare;
3. In this notice, any word or expression to which a meaning has been assigned in the Act or the Chemical Weapons Convention, as the case may be, shall have the meaning so assigned and, unless the context otherwise indicates–
“Chemical Weapons Convention” means the [1993] Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction, as ratified by the Government of the Republic of South Africa on 14 September 1995 and published for general information as Government Notice No. 754 on 2 May 1997;
“the Act” means the Non-Proliferation of Weapons of Mass Destruction Act, 1993 (Act No. 87 of 1993). 
South Africa, Certain Chemical Goods Notice, 2010, §§ 1, 2(a)(vi) and 3.