Where a technique called Life Cycle Analysis (LCA) has been identified in this line, it is based on the identification of opportunities to improve the environmental performance of products in the different stages of their life cycle, it also includes the provision of information to decision-makers in the industry, governmental or non-governmental organizations, the selection of relevant environmental performance indicators, including measurement techniques and marketing. (ICONTEC, 2007)

The Life Cycle Analysis deals with the environmental aspects and environmental impacts that are potentially present throughout the life cycle of a product from the acquisition of the raw material, through production, utilization, final treatment, recycling, until its final disposition. (ICONTEC, 2007)

It has also been identified that the standard NTC - ISO 14040 and the NTC - ISO 14044 study Life Cycle Analysis and life cycle studies, which also work as one of the existing environmental management techniques that can be applied to all however, these situations, like other international standards, are not foreseen to create non-tariff barriers to trade or to increase or modify the legal obligations of an organization. (ICONTEC, 2007)

1. The system of the product to be studied.

2. The functions of the product system or in the case of comparative studies, the systems.

3. The functional unit.

4. The limits of the system

5. The allocation procedures

6. The methodology of the EICV and the types of impacts

7. The interpretation to be used

8. The requirements concerning the data

9. The assumptions

10. Value judgments and optional elements

11. The limitations

12. The data quality requirements

13. The type of data revision

14. The type of critical review

15. The type and format of the report required for the study

The international agreements have achieved that the evaluation of the life cycle of emissions of energy production has been the main objective of study to control the direct and indirect impacts of emissions on health and the environment.

Many countries, especially those with higher energy consumption, pay much attention to the alternative of using organic or industrial matter (bioenergy), each country taking its measures for the realization of bioenergy.

• Marketing (for example, implementing an environmental labeling scheme, elaborating an environmental claim, or an environmental product declaration). 

There are four phases in an ACV study: 
1. The Definition Phase of the Objective and the Scope.
2. The Inventory Analysis Phase.
3. The Environmental Impact Assessment Phase. 
4. The Interpretation Phase.

The SCOPE of an LCA, including the limits of the system and the level of detail, depends on the subject and the intended use of the study. The depth and amplitude of the ACV can differ considerably depending on the objective of a particular ACV.

The INVENTORY ANALYSIS phase of the life cycle (ICV phase) is the second phase of the ACV. It is an inventory of the input / output data in relation to the system under study. It involves the collection of the data necessary to meet the objectives of the defined study.

The phase of EVALUATION OF THE IMPACT OF THE LIFE CYCLE (EICV phase) is the third phase of the LCA. The objective of the EICV is to provide additional information to help evaluate the life cycle inventory (LCI) results of a product system in order to better understand its environmental importance.

INTERPRETATION of the life cycle is the final phase of the LCA procedure, in which the results of the ICV or the EICV or both are summarized and discussed as a basis for conclusions, recommendations and decision making in accordance with the objective and defined scope.