communications cables in existing pipes, reconstruction, relocation, protection and repairs); 2. the strengthening and replacement of existing antenna systems and their raising or lowering; 3. the replacement of existing containers; 4. implementation of the required earthing or the expansion of the existing earthing in order to replace a container/tower, lightning protection, machine installations, electrical installations and the necessary increase in the existing electrical connection power. (4) The minister responsible for electronic communications (hereinafter: the minister) shall specify, with regard to the level of complexity of construction, the simple communications facilities which do not require a construction permit under construction regulations, and shall prescribe what is deemed to be maintenance of communications facilities over and above the works referred to in the preceding paragraph. (5) Unless the actual and technical possibilities do not allow it, the communications networks and associated infrastructure referred to in the second paragraph of this Article must be constructed so as to enable their shared use for the purposes of environmental protection, restriction of unnecessary encroachments into the environment, and the protection of public health and public safety. To this end, construction of these communications networks must always provide for and install an access point enabling the shared use of the access part of the network, on which the Agency shall decide in accordance with Article 91 of this Act. (6) In the construction of multi-apartment and commercial buildings, communications infrastructure must be designed and built into the common areas of the building. A distribution point must be planned and implemented in the design and construction of this infrastructure so as to provide an individual operator with a connection to every part of the building (every subscriber) separately. The same shall also apply, as appropriate, to the reconstruction of household communications infrastructure. (7) The Agency shall, by means of a general act, regulate in detail technical and other issues arising from the implementation of the fifth and sixth paragraphs of this Article. (8) Local communities shall promote the construction of electronic communications networks and associated infrastructure within the sphere of their competencies and, where appropriate, cooperate with the Agency. In doing so they shall, in particular, lay down the conditions for the construction of electronic communications networks and associated infrastructure in their spatial planning documents, conclude easement and other agreements with operators on their infrastructure, notify operators and the Agency of planned future modifications of existing infrastructure, and may plan the construction of open public communications networks. Article 10 (joint construction) (1) An investor in the communications networks referred to in the second paragraph of the previous Article must, not later than 30 days prior to the issuing of the order to produce the project design documentation required for the acquisition of a construction permit or, when a construction permit is not required, not later than 60 days prior to the commencement of works, notify the Agency of the planned construction and invite interested joint investors in electronic communications networks and associated infrastructure to engage in joint construction of the facilities. An investor in other types of commercial public infrastructure must, in the same timeframe as the investor in communications networks, notify the Agency of the planned construction and invite interested investors in electronic communications networks to express their interest in inclusion in electronic communications networks and associated infrastructure being planned. The Agency must publish on its website the investors’ notices regarding the commencement of planning not later than seven days after