(7) The date specified under paragraph (6)(b) must not be earlier than the expiry of five working  days from the date of the receipt of the notice.  (8) The notice given under paragraph (5) must be signed by the undertaker and the person to  whom the benefit of the powers will be transferred or granted as specified in that notice.  10. —(1) The undertaker must not begin to exercise the powers conferred by the provisions  referred to in paragraph (2) in relation to any Order land unless it has first put in place either—  (2) The provisions are—  (3) A guarantee or alternative form of security given in respect of any liability of the undertaker  to pay compensation pursuant to the provisions referred to in paragraph (2) is to be treated as  enforceable against the guarantor or person providing the alternative form of security by any  person to whom such compensation is payable and must be in such a form as to be capable of  enforcement by such a person.  (4) Nothing in this article requires a guarantee or alternative form of security to be in place for  more than 15 years after the date on which the relevant power is exercised.  11. —(1) The undertaker may, for the purposes of the authorised development, enter on so much  of any of the streets specified in Schedule 3 (streets subject to street works) and may—  (2) The authority given by paragraph (1) is a statutory right for the purposes of sections 48(3)  (streets, street works and undertakers) and 51(1) (prohibition of unauthorised street works) of the  1991 Act.  (3) Where the undertaker is not the street authority, the provisions of sections 54 to 106 of the  1991 Act apply to any street works carried out under paragraph (1).  11 Street works  Streets  Guarantees in respect of payment of compensation  (d) pursuant to paragraph (3), the restrictions, liabilities and obligations that will apply to the  person exercising the powers transferred or granted; and  (e) where relevant, a plan showing the works or areas to which the transfer or grant relates.  (a) a guarantee and the amount of that guarantee approved by the Secretary of State in  respect of the liabilities of the undertaker to pay compensation pursuant to the provisions  referred to in paragraph (2); or  (b) an alternative form of security and the amount of that security approved by the Secretary  of State in respect of the liabilities of the undertaker to pay compensation pursuant to the  provisions referred to in paragraph (2).  (a) article 22 (compulsory acquisition of land);  (b) article 24 (compulsory acquisition of rights);  (c) article 26 (private rights);  (d) article 31 (temporary use of land for carrying out the authorised development);  (e) article 32 (temporary use of land for maintaining the authorised development); and  (f) article 33 (statutory undertakers).  (a) break up or open the street, or any sewer, drain or tunnel under it;  (b) drill, tunnel or bore under the street;  (c) place apparatus in the street;  (d) maintain apparatus in the street, change its position or remove it; and  (e) execute any works required for or incidental to any works referred to in sub-paragraph  (a), (b), (c) or (d). 