| The Mexican Constitution 
					of 1917  (La Constitución Política de 1917)
 | The Mexican 
					Constitution of 1917, written after the Mexican Revolution 
					is the basis of all Mexican law - the Magna Carta.  It 
					contains reforms that addressed the principal causes of the 
					Mexican Revolution - labor abuses, land expropriated from 
					farmers and villages, natural resources exploited by foreign 
					companies, etc. The Constitution of 1917 contains such 
					revolutionary ideas for the time as 48 hour work weeks, 
					overtime, vacations and maternity leave.   | 
				
					| Laws   | Laws are based 
					directly on the Constitution; all Mexican laws receive their 
					authority from the Constitution.  Some Laws like the Labor 
					law are defined in great detail in the Constitution (art. 
					123a). Article 123 is considered one of the social 
					guarantees - human rights established in the Constitution. Laws 
					assign authority and responsibility for 
					enforcement. 
					Laws begin as 
					initiatives from State or Federal Representatives (Diputados), 
					or Senators, or from the Executive branch. They are 
					approved by Congress and signed by the President. Each law 
					designates which Secretary (cabinet branch) is responsible 
					for oversight. (STPS- Secretary of Labor, SEMARNAT - 
					Secretary of Environment, etc)   | 
				
					| Regulations  | Regulations 
					define the Laws - Regulations of laws are created by the 
					Secretary that is responsible for the enforcement of the 
					Law. Regulations establish the procedures, 
					processes, etc. for compliance 
					to the Laws.   | 
				
					| Standards  (Norma Oficial Mexicana, NOM's)
Official Mexican Standard | NOM's 
					(Official Mexican Standards) have the 
					force of law.  The DGN (Dirección General de Normas) is 
					a department of the Secretary of Economy and is responsible 
					for creating the NOMs. They detail the form, format, documentation 
					that must be maintained for compliance to laws and 
					regulations; they also detail fines and sanctions. 
						 
						
						
							
								| What 
								the different parts of the code for NOM's stand 
								for an 
								example...
 |  
								| NOM- | 018 | STPS | 2000 |  
								| Norma Oficial Mexicana | number of the NOM | Abbreviation for the 
								Government Dept. that it falls under | Year 
								it took effect |  
 
   | 
				
					| NMX  (Normas Mexicanas)
Mexican Standard | NMX's 
					are voluntary standards and reference 
					guides, they are obligatory when a Law, Regulation or NOM 
					obligates their use. | 
				
					| CIRCULARS  (CIRCULARES) | 
					“Circulares” are administrative acts through which the 
					Federal Executive departments and entities (“Secretarías” 
					and “Subsecretarías”) give instructions to lower departments 
					or to give clarification to the parties subject to the laws, 
					regulations or standards.   
					They are not regulations or standards – they are designed to 
					develop criteria for the compliance to regulations or 
					standards (NOMs) or clarify procedures or processes that are 
					requirements in the laws, regulations or standards.  
					The “circulares” cannot modify  regulations or standards but 
					are meant to clarify specific points without establishing 
					new rights or obligations to the parties subject to those 
					regulations or standards.  Their intent is to constitute 
					general criteria to apply to concrete cases, and they are 
					meant to aid the lower level functionaries and the subject 
					parties to apply the precepts found in the laws, 
					regulations, or standards.  
					“Circulares” by their nature are not permanent and they 
					cease to have legal effects when a law, regulation or 
					standard is cancelled or modified.      |