## 4 Results
### Sector-Specific Example  
In the following section, a sector-specific example is provided: C2C Certified is compared against the performance characteristics of two existing labels, namely the Type I BA and the Type III IBU. The same set of characterization attributes as in Section 4.1 is used, but in Table 4, the results are presented only for those that show specifics of the analyzed approaches and are important for the comparison. Few of them are discussed hereafter. Following this, the performance of the three approaches from the perspective of overall acceptance within the \"Construction and construction services\" sector and GBCS is presented. BA applies a binary seal type of awarding format. In addition, the label is divided into four different protection objectives: Climate, Resources, Environment and Health, and Water. When a  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Attribute** & **BA** & **IBU** & **C2C Certified** \\ \hline \hline \multirow{3}{*}{ISO typology} & Fully conformant Type I & \multirow{3}{*}{ \begin{tabular}{c} Fully conformant Type III program operator \\ according to ISO 14024 \\ \end{tabular}  } & Fully conformant Type III program operator & Does not fully conform with \\  & & & \\ \cline{1-1}  & & & \\ \cline{1  
product is awarded the BA label, a protection objective is assigned and displayed on the seal. The idea is that the consumer is shown the focus of the awarding criteria. The assignment of more than one protection objective to a product group is inadmissible [41]. EN 15804+A1 [42] is a European norm, providing core rules for the product category of construction products in development for EPDs. Together with ISO 14025, EN 15804+A1 is also the core standard behind the ECO Platform initiative (explained in Section 3.2). The standard is widely accepted, and is a symbol of harmonization work between a large group of stakeholders working in the sector. In this sense, IBU's involvement in this process is a guarantee for a coherent and aligned communication flow in the sector between stakeholders along the supply chain. As an example, IBU's EPDs follow the EN 15804+A1 requirements on impact assessment by declaring the results based on six environmental impact categories and 10 resource use parameters, as set in the standards (listed in Table 4). Whereas IBU's EPDs cover environmental (and optionally health) aspects, both BA and C2C Certified also include social elements. BA recognizes products that are environmentally friendly in a holistic way, but that also meet high standards for occupational health and safety. \"Socially controversial\" products are excluded [41] (p. 1). Furthermore, the fundamental principles and rights relating to working conditions, as reflected in the applicable core labor standards of the International Labor Organization (ILO), shall be met both by the licensees and the value chain producers [41]. On the other hand, C2C Certified also account, with their Social Fairness category, for progress made toward sustainable business practices, respecting human rights and labor practices, and assuring worker health and safety. The different certification levels require different levels of commitment, starting from a self-audit and assessing the protection of human rights at the Basic level, to aiming for a third-party audit of the facility that conforms with an internationally recognized social responsibility program (e.g., SA8000) at the Platinum level [20]. C2C Certified is recognized by LEED(r) v4 for credit \"Building product disclosure and optimization--material ingredients\", where C2C Certified's rigorous requirement for a complete bill of material is used to achieve one point. An additional point is given if the material ingredient optimization is documented (a requirement for C2C Certified levels above Silver). It is not known whether C2C Certified is recognized in other GBCS or schemes for other sectors.